MiniABS 1.4: smaller player controls

- Play/pause becomes a rounded rectangle (58x46dp) instead of a 78dp circle,
  with 32dp icons and wider spacing (play_w/play_h/play_gap in dimens.xml)
- Skip buttons shrink from 82x56dp to 62x42dp, with 16sp text
- Version 1.4 (versionCode 5); there was no public 1.3

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/com/miniabs/Api.java

@@ -26,7 +26,7 @@ import android.os.Build;
 
 /** Audiobookshelf REST client (API as of server 2.x, including the 2.26+ token system). */
 final class Api {
-    static final String VERSION = "1.2";
+    static final String VERSION = "1.4";
 
     static class ApiException extends IOException {
         final int code;