Add features:

- manifest.json with PNG icon set.
 - reset option against QuickLinks storage
 - 'Preferences' store, ready for preferences page - including location boolean... Important!
 - Minor service-worker improvements for better offline fallbacks

src/lib/assets/owlboard-logo-square.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" viewBox="0 0 562.1 562.1"><defs><radialGradient xlink:href="#a" id="b" cx="256" cy="256" r="254" fx="256" fy="256" gradientTransform="translate(27 27)" gradientUnits="userSpaceOnUse"/><linearGradient id="a"><stop offset="0" stop-color="#2b343c"/><stop offset="1" stop-color="#404c55"/></linearGradient></defs><path fill="url(#b)" d="M694.3 283a411.3 394 0 0 1-410.7 394 411.3 394 0 0 1-412-392.8 411.3 394 0 0 1 409.5-395.1 411.3 394 0 0 1 413.2 391.4" transform="translate(-2 -2)"/><path fill="#4fd1d1" d="M281 81a200 200 0 0 0-153.4 71.8 120 120 0 0 0 50.5 25.8c9 2.3 8.9 2.3 15.6-.6 50-21.6 124.4-21.6 175.2-.1 13.3 5.6 44.6-6.5 65.9-24.8a200 200 0 0 0-153.8-72m-161.9 82.7a200 200 0 0 0-38 117.3 200 200 0 0 0 200 200 200 200 0 0 0 200-200 200 200 0 0 0-37.8-116.8 96 96 0 0 1-17.7 46.6l-2.8 4 1.3 1.8c73.3 99.2-14.3 222.2-116.7 163.6-2.5-1.4-4.7-2.4-5-2.1s-10.5 19.6-18 34c-3.4 6.5-2.7 6.6-6.3-.3-9.2-17.5-18-34-18.3-34-.1 0-2.3 1-4.7 2.5-101.3 58-190.7-65.7-117.4-162.4q2.3-3 1.8-3.6a102 102 0 0 1-20.4-50.6m86.5 57q-14.6 0-29.8 7.5C108 261.8 143.1 366.4 217.5 352a68 68 0 0 0 43.3-28.4c2.4-3.4 3.3-4.2 3.7-3.7l8.5 14.6c9.4 16.3 8 15 11.4 9 5.1-9 13.7-23.5 14-24 .3-.2 1.9 1.8 3.6 4.3 31 45.5 101.6 35.6 118.3-16.5a66.4 66.4 0 0 0-83.9-83c-23.3 7.7-38.7 24.4-53.8 58.4l-1.3 3-2.7-6c-17-38.5-43.7-59.5-73-59.2m147.2 34.7a32 32 0 0 1 23.7 9.5c22.8 22.8.7 60.8-30.9 53.1a32 32 0 0 1-23.2-37.3 31.5 31.5 0 0 1 30.4-25.3m-145.8 0c16.4-.8 32.7 11 33.9 30.1a32.2 32.2 0 0 1-40.1 32.5 31.5 31.5 0 0 1-15-52.9 32 32 0 0 1 21.2-9.6m12 9.6q-3.3 0-5.8 3c-6.3 7.4 2.5 17.7 11 13a9 9 0 0 0 4.2-7.5c0-5.4-4.8-8.9-9.4-8.5m123.1 0c-6 .5-9.6 6.5-7 12.3 2 4.5 8.3 6.3 12.2 3.6 7.2-4.9 4.7-15.3-4-15.8z"/></svg>

src/lib/preferences.svelte.ts

@@ -0,0 +1,43 @@
+import { browser } from '$app/environment';
+
+export interface Preferences {
+    locationEnabled: boolean;
+}
+
+const STORAGE_KEY = 'ob_pref';
+
+const DEFAULT_PREFS: Preferences = {
+    locationEnabled: false,
+};
+
+function loadPrefs(): Preferences {
+    if (!browser) return DEFAULT_PREFS;
+    const stored = localStorage.getItem(STORAGE_KEY);
+    if (!stored) return DEFAULT_PREFS;
+
+    try {
+        return { ...DEFAULT_PREFS, ...JSON.parse(stored) };
+    } catch {
+        return DEFAULT_PREFS;
+    }
+}
+
+class PreferencesStore {
+    current = $state<Preferences>(loadPrefs());
+
+    constructor() {
+        $effect.root(() => {
+            $effect(() => {
+                if (browser) {
+                    localStorage.setItem(STORAGE_KEY, JSON.stringify(this.current));
+                }
+            });
+        });
+    }
+
+    toggleLocation(enabled: boolean) {
+        this.current.locationEnabled = enabled;
+    }
+}
+
+export const prefs = new PreferencesStore();

src/lib/quick-links.svelte.ts

@@ -11,14 +11,18 @@ const MAX_ENTRIES: number = RETURNED_LENGTH * 4;
 class QuickLinksService {
 	#links = $state<QuickLink[]>([]);
 
-	constructor() {
-		if (typeof window !== 'undefined') {
-			const saved = localStorage.getItem('ql');
-			if (saved) {
-				this.#links = JSON.parse(saved);
-			}
-		}
-	}
+constructor() {
+        if (typeof window !== 'undefined') {
+            const saved = localStorage.getItem('ql');
+            if (saved) {
+                try {
+                    this.#links = JSON.parse(saved);
+                } catch {
+                    this.#links = [];
+                }
+            }
+        }
+    }
 
 	get list(): QuickLink[] {
 		return this.#links.slice(0, RETURNED_LENGTH);
@@ -53,8 +57,17 @@ class QuickLinksService {
 
 		this.#links = sorted.slice(0, MAX_ENTRIES);
 
-		localStorage.setItem('ql', JSON.stringify(this.#links));
+		if (typeof window !== 'undefined') {
+            localStorage.setItem('ql', JSON.stringify(this.#links));
+        }
 	}
+
+	reset() {
+        this.#links = [];
+        if (typeof window !== 'undefined') {
+            localStorage.removeItem('ql');
+        }
+    }
 }
 
 export const quickLinks = new QuickLinksService();