Fix frozen-build SSL certs, taskbar icon, and rename _internal to psp-preserve

- config: point SSL at certifi bundle when frozen (fixes store/NPS/TMDB SSL errors)
- gui: set app name + window icon for the taskbar
- spec: contents_directory=psp-preserve; bundle a .desktop file for Wayland launchers

psp-preserve.spec

@@ -24,6 +24,7 @@ datas = [
     ("data/covers/UMD_GAME_COVER_TEMPLATE.png", "data/covers"),
     ("img/app-icon.png", "img"),
     ("img/chevron.png", "img"),
+    ("packaging/psp-preserve.desktop", "."),
 ]
 
 a = Analysis(
@@ -53,6 +54,7 @@ exe = EXE(
     upx=False,
     console=False,
     disable_windowed_traceback=False,
+    contents_directory="psp-preserve",
 )
 
 coll = COLLECT(