feat: de-clutter navbar

fix: backup option not working
refactor: persistent writable stores

[deploy]

src/lib/storage.ts

@@ -0,0 +1,17 @@
+import type {Writable} from "svelte/store"
+import {writable} from "svelte/store"
+import {browser} from "$app/environment"
+
+export function persistentWritable<T>(key: string, value: T, condition?: () => boolean): Writable<T> {
+  if (browser) {
+    const persistedValue = localStorage.getItem(key)
+    const store = persistedValue !== null ? writable(JSON.parse(persistedValue)) : writable(value)
+    store.subscribe(value => {
+      if (!condition || condition()) localStorage.setItem(key, JSON.stringify(value))
+    })
+
+    return store
+  } else {
+    return writable(value)
+  }
+}