App 2.17.5: Server tab fits; installation ID is read-only

- The "Your private connection" card is gone; its text was out of date
  (the ABRP credentials are no longer on the server).
- Import from file moved next to Save and Test, in one row.
- The installation ID is shown as text instead of an editable field:
  it is derived from the head unit, and changing it by hand only risked
  splitting the history. A config file can still carry an older one
  over, as before.
- The page fits the car's 1778x640 window without scrolling (checked
  on the emulator), and the subtitle no longer says the server passes
  data on to ABRP.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QLJfZQZeAKAwSqViTmLzki

app/build.gradle

@@ -34,8 +34,8 @@ android {
         applicationId "com.stinnesbeck.nilsmg4"
         minSdk 27
         targetSdk 36
-        versionCode 93
-        versionName "2.17.4"
+        versionCode 94
+        versionName "2.17.5"
 
         // 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.