Feat: Reworked ENTIRE Project for Readability

src/store/app.svelte.ts

@@ -0,0 +1,22 @@
+export type NavPage =
+  | "home" | "library" | "sources" | "explore"
+  | "downloads" | "extensions" | "history" | "search" | "tracking";
+
+class AppStore {
+  navPage:      NavPage = $state("home");
+  settingsOpen: boolean = $state(false);
+  searchPrefill: string = $state("");
+  genreFilter:   string = $state("");
+
+  setNavPage(next: NavPage)       { this.navPage       = next; }
+  setSettingsOpen(next: boolean)  { this.settingsOpen  = next; }
+  setSearchPrefill(next: string)  { this.searchPrefill = next; }
+  setGenreFilter(next: string)    { this.genreFilter   = next; }
+}
+
+export const app = new AppStore();
+
+export function setNavPage(next: NavPage)      { app.setNavPage(next); }
+export function setSettingsOpen(next: boolean) { app.setSettingsOpen(next); }
+export function setSearchPrefill(next: string) { app.setSearchPrefill(next); }
+export function setGenreFilter(next: string)   { app.setGenreFilter(next); }