feat: show search icon in header instead of input

+ fix: persistent updating text on update playlist modal
+ move router routes to a separate file
    + lazy import route components
+ remove loading: lazy from songcard
+ remove unused imports on navigation component

src/stores/pages/folder.ts

@@ -19,7 +19,6 @@ export default defineStore("FolderDirs&Tracks", {
       const { tracks, folders } = await fetchThem(path);
 
       [this.path, this.allDirs, this.allTracks] = [path, folders, tracks];
-
     },
     resetQuery() {
       this.query = "";