Update documentation, standardize on WAV audio format, and improve attribution (#19)

* Remove MP3 sound files and update documentation to reflect WAV-only support

* Fix stale strings

src/ui/audio_feedback.py

@@ -18,7 +18,7 @@ PACKAGE_DIR = os.path.dirname(MODULE_DIR)
 RESOURCES_DIR = os.path.join(os.path.dirname(PACKAGE_DIR), "resources")
 SOUNDS_DIR = os.path.join(RESOURCES_DIR, "sounds")
 
-# Sound file paths - prioritize WAV files
+# Sound file paths
 START_SOUND = os.path.join(SOUNDS_DIR, "start_recording.wav")
 STOP_SOUND = os.path.join(SOUNDS_DIR, "stop_recording.wav")
 ERROR_SOUND = os.path.join(SOUNDS_DIR, "error.wav")
@@ -70,11 +70,6 @@ def _play_sound_file(sound_path):
     if not player:
         return False
 
-    file_ext = os.path.splitext(sound_path)[1].lower().lstrip(".")
-    if file_ext not in formats:
-        logger.warning(f"Format {file_ext} not supported by {player}")
-        return False
-
     try:
         if player == "paplay":
             subprocess.Popen(

src/ui/tray_indicator.py

@@ -216,7 +216,8 @@ class TrayIndicator:
         about_dialog = Gtk.AboutDialog()
         about_dialog.set_program_name("Vocalinux")
         about_dialog.set_version("0.1.0")
-        about_dialog.set_copyright("© 2025 Vocalinux Team")
+        about_dialog.set_copyright("© 2025 | @jatinkrmalik")
+        about_dialog.set_authors(["Jatin K Malik"])
         about_dialog.set_comments("A seamless voice dictation system for Ubuntu")
         about_dialog.set_website("https://github.com/jatinkrmalik/vocalinux")
         about_dialog.set_website_label("GitHub Repository")