App 2.34.1: a tab to leave the Overview's full screen beside the car's sidebar

Without the app's own full screen, the car's sidebar takes the left edge
and a swipe from there never reaches the app. A small tab at the app's
left edge now brings the navigation back, by a tap or a swipe from it.
In the app's full screen the handle and edge swipe stay as they were.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

app/build.gradle

@@ -34,8 +34,8 @@ android {
         applicationId "com.stinnesbeck.nilsmg4"
         minSdk 27
         targetSdk 36
-        versionCode 133
-        versionName "2.34.0"
+        versionCode 134
+        versionName "2.34.1"
 
         // Nothing about the server ships in the APK: its URL and ingest token are entered in
         // the app's Server tab (ServerConfig), and the database is only reachable by the server.