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/pages/SetupWizard.svelte

@@ -11,7 +11,7 @@
   import Checkbox from '@/components/ui/checkbox/checkbox.svelte';
   import { cursorSmoothening, customCursor, reduceAnimations, userSettings } from '@/userSettings';
   import Label from '@/components/ui/label/label.svelte';
-  import { current_view } from '@/global';
+  import { beatmapSets, currentView } from '@/global';
   import Launch from './Launch.svelte';
   import Confetti from 'svelte-confetti';
 
@@ -65,6 +65,13 @@
       autoDetectedOsuPath = false;
       manualSelectValid = true;
       $userSettings.value('osu_installation_path').set(osuInstallationPath);
+
+      const beatmapSetCount: number | null = await invoke('get_beatmapsets_count', {
+        folder: osuInstallationPath,
+      });
+      if (beatmapSetCount) {
+        beatmapSets.set(beatmapSetCount);
+      }
     }
   };
 
@@ -90,7 +97,7 @@
       class="mt-4"
       onclick={async () => {
         await $userSettings.save();
-        current_view.set(Launch);
+        currentView.set(Launch);
       }}
     >
       Finish