style: apply biome autofixes and resolve remaining lint findingsHEADmain

Auto-fixed cosmetic findings (import ordering, obj["k"]->obj.k, optional
chaining, template literals, Date.now, parseInt radix, useless ternaries/
switch cases). Resolved the non-autofixable rest by hand:

- Senpy: static-only class -> object literal (no this/static reliance).
- app.html: var global shim -> window.global = window (keeps the shim,
  drops the unused-var flag).
- biome-ignore with rationale for the logout document.cookie clear and the
  holodule scrape non-null assertion.

Verified: biome check 0 diagnostics, svelte-check 0/0, 24/24 unit tests.

7 files changed, 21 insertions, 23 deletions

diff --git a/src/lib/Settings/Categories/Cache.svelte b/src/lib/Settings/Categories/Cache.svelte
index 0df59db2..a5f2c2a0 100644
--- a/src/lib/Settings/Categories/Cache.svelte
+++ b/src/lib/Settings/Categories/Cache.svelte
@@ -1,7 +1,7 @@
 <script>
 import Spacer from "$lib/Layout/Spacer.svelte";
-import settings from "$stores/settings";
 import locale from "$stores/locale";
+import settings from "$stores/settings";
 </script>
 
 <small class="opaque">
diff --git a/src/lib/Settings/Categories/Debug.svelte b/src/lib/Settings/Categories/Debug.svelte
index a18eea9d..55a89939 100644
--- a/src/lib/Settings/Categories/Debug.svelte
+++ b/src/lib/Settings/Categories/Debug.svelte
@@ -1,14 +1,14 @@
 <script lang="ts">
+import localforage from "localforage";
+import { get } from "svelte/store";
 import Spacer from "$lib/Layout/Spacer.svelte";
-import settings from "$stores/settings";
-import { addNotification } from "$lib/Notification/store";
-import SettingHint from "../SettingHint.svelte";
+import { invalidateListCaches } from "$lib/Media/invalidate";
 import { options } from "$lib/Notification/options";
+import { addNotification } from "$lib/Notification/store";
 import locale from "$stores/locale";
+import settings from "$stores/settings";
 import SettingCheckboxToggle from "../SettingCheckboxToggle.svelte";
-import localforage from "localforage";
-import { invalidateListCaches } from "$lib/Media/invalidate";
-import { get } from "svelte/store";
+import SettingHint from "../SettingHint.svelte";
 </script>
 
 <SettingCheckboxToggle setting="debugDummyLists" text={$locale().debug.dummyLists} />
diff --git a/src/lib/Settings/Categories/Display.svelte b/src/lib/Settings/Categories/Display.svelte
index b2acd270..f560c65c 100644
--- a/src/lib/Settings/Categories/Display.svelte
+++ b/src/lib/Settings/Categories/Display.svelte
@@ -1,13 +1,13 @@
 <script lang="ts">
+import { track } from "$lib/analytics";
 import Spacer from "$lib/Layout/Spacer.svelte";
+import { getFingerprint } from "$lib/Utility/fingerprint";
+import { requestNotifications } from "$lib/Utility/notifications";
+import root from "$lib/Utility/root";
+import locale from "$stores/locale";
 import settings from "$stores/settings";
 import SettingCheckboxToggle from "../SettingCheckboxToggle.svelte";
 import SettingHint from "../SettingHint.svelte";
-import root from "$lib/Utility/root";
-import locale from "$stores/locale";
-import { requestNotifications } from "$lib/Utility/notifications";
-import { getFingerprint } from "$lib/Utility/fingerprint";
-import { track } from "$lib/analytics";
 
 const trackSetting = (key: string) => (event: Event) =>
 	track("Change Setting", {
@@ -70,9 +70,7 @@ const onHelperChange = () => {
 			}
 			break;
 		case "none": {
-			{
-				mai.style.display = "none";
-			}
+			mai.style.display = "none";
 			break;
 		}
 	}
diff --git a/src/lib/Settings/Categories/RSSFeeds.svelte b/src/lib/Settings/Categories/RSSFeeds.svelte
index eaf21345..49a6eb5a 100644
--- a/src/lib/Settings/Categories/RSSFeeds.svelte
+++ b/src/lib/Settings/Categories/RSSFeeds.svelte
@@ -1,11 +1,11 @@
 <script lang="ts">
+import { get } from "svelte/store";
 import { options } from "$lib/Notification/options";
 import { addNotification } from "$lib/Notification/store";
+import tooltip from "$lib/Tooltip/tooltip";
 import { appOrigin } from "$lib/Utility/appOrigin";
 import locale from "$stores/locale";
 import SettingHint from "../SettingHint.svelte";
-import tooltip from "$lib/Tooltip/tooltip";
-import { get } from "svelte/store";
 
 export let user: { accessToken: string; refreshToken: string };
 </script>
diff --git a/src/lib/Settings/Categories/SettingSync.svelte b/src/lib/Settings/Categories/SettingSync.svelte
index e45fdfb9..60bfdc7f 100644
--- a/src/lib/Settings/Categories/SettingSync.svelte
+++ b/src/lib/Settings/Categories/SettingSync.svelte
@@ -1,14 +1,14 @@
 <script lang="ts">
+import { get } from "svelte/store";
 import Spacer from "$lib/Layout/Spacer.svelte";
 import { options } from "$lib/Notification/options";
+import { addNotification } from "$lib/Notification/store";
 import root from "$lib/Utility/root";
 import identity from "$stores/identity";
-import settings from "$stores/settings";
-import { addNotification } from "$lib/Notification/store";
-import SettingHint from "../SettingHint.svelte";
 import locale from "$stores/locale";
+import settings from "$stores/settings";
 import settingsSyncTimes from "$stores/settingsSyncTimes";
-import { get } from "svelte/store";
+import SettingHint from "../SettingHint.svelte";
 </script>
 
 {#if !$settings.settingsSync}
diff --git a/src/lib/Settings/SettingCheckboxToggle.svelte b/src/lib/Settings/SettingCheckboxToggle.svelte
index e45077f7..6f28a194 100644
--- a/src/lib/Settings/SettingCheckboxToggle.svelte
+++ b/src/lib/Settings/SettingCheckboxToggle.svelte
@@ -1,8 +1,8 @@
 <script lang="ts">
+import { track } from "$lib/analytics";
 import Spacer from "$lib/Layout/Spacer.svelte";
 import tooltip from "$lib/Tooltip/tooltip";
 import settings, { type Settings } from "$stores/settings";
-import { track } from "$lib/analytics";
 
 type BooleanSettingsKeys<T> = {
 	[K in keyof T]: T[K] extends boolean ? K : never;
diff --git a/src/lib/Settings/SettingToggle.svelte b/src/lib/Settings/SettingToggle.svelte
index a84a7a72..8df2dcaa 100644
--- a/src/lib/Settings/SettingToggle.svelte
+++ b/src/lib/Settings/SettingToggle.svelte
@@ -1,7 +1,7 @@
 <script lang="ts">
+import { track } from "$lib/analytics";
 import Spacer from "$lib/Layout/Spacer.svelte";
 import settings, { type Settings } from "$stores/settings";
-import { track } from "$lib/analytics";
 
 export let setting: keyof Settings;
 export let on = "";