fix(train): the Record sheet's music choice on a row of its own, each label on one line

The segmented choice of Music, Metronome and Off sat in the music
tile's subtitle, beside its icon, where a phone of 360 dp wrapped
"Metronome" into "Metronom/e". It takes the list's whole width now,
under its title, each label on one line and scaled down where larger
text still leaves too little room. ADR 0030, D65.

Whats-New: The Record sheet's Music, Metronome and Off each fit on one line.
Whats-New-De: Musik, Metronom und Aus passen im Aufzeichnen-Blatt jeweils auf eine Zeile.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

docs/adr/0030-halkyon-train.md

@@ -1714,6 +1714,11 @@ Strava. What was found, 27 Oct:
     is on and Train allowed the precise one (Android's approximate location gives no
     GPS fixes).
 
+  - **The Record sheet's music on one line**: its choice (Music, Metronome, Off) sat in
+    the tile's subtitle beside the icon, where a phone wrapped "Metronome" in two. It
+    has a row of its own now, as wide as the list, each label on one line and scaled
+    down where it still doesn't fit (larger text), rather than shortened labels or a
+    menu, which would hide the choice behind a tap.
 ## Consequences
 
 - Train's sensors are one pattern: open profiles read by the app itself, on the phone;