[projects] Update project: Typewriter's homepage has been deleted (#462)

Author: YDX-2147483647

projects.yaml

@@ -602,7 +602,11 @@ projects:
     category: misc
 
   - name: Typewriter
-    homepage: https://flathub.org/apps/app.drey.Typewriter
+    # The author declared End of Life in its README on 2026-03-26.
+    # https://gitlab.gnome.org/JanGernert/typewriter/-/commit/e44bf2149d3f40bec688b0dc38348ef1c5bd8599
+    # As of 2026-07-13, the app is no longer available on Flathub.
+    # > This application is no longer maintained. Migration to net.trowell.typesetter is recommended
+    # homepage: https://flathub.org/apps/app.drey.Typewriter
     category: writing
     labels: [app]
     gitlab_id: https://gitlab.gnome.org/api/graphql::JanGernert/typewriter