feat: Refactor API interactions and enhance user settings management

- Updated ezpp API to include user info retrieval and improved error handling.
- Introduced new writable stores for current user info and loading states.
- Added gamemode enums and utility functions for better gamemode handling.
- Refactored global state management to use consistent naming conventions.
- Enhanced loading and login components to provide better user feedback.
- Updated user settings to include preferred mode and type.
- Improved layout and page components for better state management and user experience.

src/routes/+layout.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
   import '../app.css';
   import Titlebar from '@/components/ui/titlebar/titlebar.svelte';
-  import { first_startup, setupValues } from '@/global';
+  import { currentLoadingInfo, firstStartup, setupValues } from '@/global';
   import { onMount } from 'svelte';
   import OsuCursor from '@/components/ui/osu-cursor/OsuCursor.svelte';
   import {
@@ -68,9 +68,10 @@
     window.Buffer = Buffer;
     disableReload();
     setupValues();
-    const firstStartup = await $userSettings.init();
+    const isFirstStartup = await $userSettings.init();
     $userAuth.init();
 
+    currentLoadingInfo.set('Loading config...');
     const config_custom_cursor = $userSettings.value('custom_cursor');
     const config_cursor_smoothening = $userSettings.value('cursor_smoothening');
     const config_reduce_animations = $userSettings.value('reduce_animations');
@@ -85,7 +86,7 @@
     cursorSmoothening.subscribe((val) => config_cursor_smoothening.set(val));
     reduceAnimations.subscribe((val) => config_reduce_animations.set(val));
 
-    first_startup.set(firstStartup);
+    firstStartup.set(isFirstStartup);
   });
 </script>