Added a toggle to choose between using Artist property or AlbumArtist property for folder name (#169)

* Corrected function call to correctly download albums vs playlists

* Added setting to prefer AlbumArtist as folder name.
  - In practice, this prevents albums with multiple artists, featured artists, collaborations, or collections like soundtracks, from being split up
  - This is occasionally desirable behavior, so I added it as a toggle rather than a default behavior

frontend/src/components/SettingsPage.tsx

@@ -339,7 +339,14 @@ export function SettingsPage() {
               </p>
             )}
           </div>
-
+            <div className="flex items-center gap-3">
+                <Label htmlFor="use-album-artist" className="cursor-pointer text-sm">Use Album Artist</Label>
+                <Switch
+                    id="use-album-artist"
+                    checked={tempSettings.useAlbumArtist}
+                    onCheckedChange={(checked) => setTempSettings(prev => ({ ...prev, useAlbumArtist: checked }))}
+                />
+            </div>
           <div className="border-t" />
 
           {/* Filename Format */}

frontend/src/hooks/useDownload.ts

@@ -50,8 +50,13 @@ export function useDownload() {
     // Replace forward slashes in template data values to prevent them from being interpreted as path separators
     const placeholder = "__SLASH_PLACEHOLDER__";
     // Build template data for folder path
+    let artistFolderName = artistName;
+    if(settings.useAlbumArtist) {
+        artistFolderName = albumArtist || artistName;
+    }
+    logger.info("Using artist folder name: " + artistFolderName);
     const templateData: TemplateData = {
-      artist: artistName?.replace(/\//g, placeholder),
+      artist: artistFolderName?.replace(/\//g, placeholder),
       album: albumName?.replace(/\//g, placeholder),
       title: trackName?.replace(/\//g, placeholder),
       track: position,
@@ -296,11 +301,15 @@ export function useDownload() {
 
     let outputDir = settings.downloadPath;
     let useAlbumTrackNumber = false;
-
+      let artistFolderName = artistName;
+      if(settings.useAlbumArtist) {
+          artistFolderName = albumArtist || artistName;
+      }
+      logger.info("Using artist folder name: " + artistFolderName);
     // Replace forward slashes in template data values to prevent them from being interpreted as path separators
     const placeholder = "__SLASH_PLACEHOLDER__";
     const templateData: TemplateData = {
-      artist: artistName?.replace(/\//g, placeholder),
+      artist: artistFolderName?.replace(/\//g, placeholder),
       album: albumName?.replace(/\//g, placeholder),
       title: trackName?.replace(/\//g, placeholder),
       track: position,

frontend/src/lib/settings.ts

@@ -21,6 +21,7 @@ export interface Settings {
   filenameTemplate: string;
   // Legacy settings (kept for migration)
   filenameFormat?: "title-artist" | "artist-title" | "title";
+  useAlbumArtist?: boolean;
   artistSubfolder?: boolean;
   albumSubfolder?: boolean;
   trackNumber: boolean;