Rewrite desktop files so they are under 0BSD and fix reuse

antigravity.desktop

@@ -1,28 +1,20 @@
 [Desktop Entry]
-Name=Antigravity
-Comment=Experience liftoff
-GenericName=Text Editor
-Exec=/usr/bin/antigravity %F
-Icon=antigravity
 Type=Application
-StartupNotify=false
+Name=Antigravity
+GenericName=Code Editor
+Comment=Agentic development platform
+Exec=/usr/bin/antigravity %F
+TryExec=/usr/bin/antigravity
+Icon=antigravity
+Terminal=false
+Categories=Development;IDE;TextEditor;
+Keywords=vscode;ide;editor;
+StartupNotify=true
 StartupWMClass=Antigravity
-Categories=TextEditor;Development;IDE;
 MimeType=application/x-antigravity-workspace;
 Actions=new-empty-window;
-Keywords=vscode;
 
 [Desktop Action new-empty-window]
 Name=New Empty Window
-Name[cs]=Nové prázdné okno
-Name[de]=Neues leeres Fenster
-Name[es]=Nueva ventana vacía
-Name[fr]=Nouvelle fenêtre vide
-Name[it]=Nuova finestra vuota
-Name[ja]=新しい空のウィンドウ
-Name[ko]=새 빈 창
-Name[ru]=Новое пустое окно
-Name[zh_CN]=新建空窗口
-Name[zh_TW]=開新空視窗
 Exec=/usr/bin/antigravity --new-window %F
 Icon=antigravity