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.

6 files changed, 8 insertions, 8 deletions

diff --git a/src/lib/Utility/html.ts b/src/lib/Utility/html.ts
index 10d52971..db9bfe7a 100644
--- a/src/lib/Utility/html.ts
+++ b/src/lib/Utility/html.ts
@@ -1,5 +1,5 @@
-import settings from "$stores/settings";
 import { get } from "svelte/store";
+import settings from "$stores/settings";
 
 export const nbsp = (str: string) => str.replace(/ /g, " ");
 
diff --git a/src/lib/Utility/image.ts b/src/lib/Utility/image.ts
index c1c2ae0e..6652e97f 100644
--- a/src/lib/Utility/image.ts
+++ b/src/lib/Utility/image.ts
@@ -23,10 +23,10 @@ export const thumbnail = (url: string | undefined) => {
 	const width = 144;
 	const height = 200;
 
-	if (url && url.includes("catbox.moe") && !url.includes("gif"))
+	if (url?.includes("catbox.moe") && !url.includes("gif"))
 		return url.replace("catbox.moe/", "catbox.moe/thumbs/t_");
 
-	if (url && url.includes("imgur") && !url.includes("gif"))
+	if (url?.includes("imgur") && !url.includes("gif"))
 		return (
 			!url.includes("i.imgur.com")
 				? url.replace("imgur.com", "i.imgur.com")
@@ -36,7 +36,7 @@ export const thumbnail = (url: string | undefined) => {
 			`_d.webp?maxwidth=${width}&shape=thumb&fidelity=high`,
 		);
 
-	if (url && url.includes("discordapp")) {
+	if (url?.includes("discordapp")) {
 		const match = url.match(/attachments\/(\d+)\/(\d+)\/(.+)/);
 
 		if (match) {
diff --git a/src/lib/Utility/oauth.ts b/src/lib/Utility/oauth.ts
index 07e8f114..c225d43c 100644
--- a/src/lib/Utility/oauth.ts
+++ b/src/lib/Utility/oauth.ts
@@ -1,4 +1,4 @@
-import { redirect, type Cookies } from "@sveltejs/kit";
+import { type Cookies, redirect } from "@sveltejs/kit";
 
 export interface ClientOptions {
 	id: string;
diff --git a/src/lib/Utility/parameters.ts b/src/lib/Utility/parameters.ts
index 17e97f1e..add0b8f8 100644
--- a/src/lib/Utility/parameters.ts
+++ b/src/lib/Utility/parameters.ts
@@ -1,6 +1,6 @@
+import { get } from "svelte/store";
 import { browser } from "$app/environment";
 import { page } from "$app/stores";
-import { get } from "svelte/store";
 
 export const clearAllParameters = (saved: string[] = []) => {
 	if (browser) {
diff --git a/src/lib/Utility/persistentStore.ts b/src/lib/Utility/persistentStore.ts
index a3837a5b..475dd4ec 100644
--- a/src/lib/Utility/persistentStore.ts
+++ b/src/lib/Utility/persistentStore.ts
@@ -1,4 +1,4 @@
-import { writable, type Writable } from "svelte/store";
+import { type Writable, writable } from "svelte/store";
 import { browser } from "$app/environment";
 
 export const persistentStore = <T>(key: string, initial: T): Writable<T> => {
diff --git a/src/lib/Utility/time.ts b/src/lib/Utility/time.ts
index a390c3d5..acd0436b 100644
--- a/src/lib/Utility/time.ts
+++ b/src/lib/Utility/time.ts
@@ -1,4 +1,4 @@
-export const databaseTimeToDate = (time: string) => new Date(time + "Z");
+export const databaseTimeToDate = (time: string) => new Date(`${time}Z`);
 
 export const dateToDatabaseTime = (date: Date) =>
 	date.toISOString().replace("T", " ").replace(/\..+/, "");