feat(ui): migrate e-ink to misc-fixed font; fix Alarm UX and status-bar icon alignment

- GxEPDDisplay now uses the same single misc-fixed 6x9 font as the OLED
  driver (Lemon retired there too), with baseline math updated for the
  new ascent.
- Clock Tools' Alarm screen: Repeat and Armed now respond to LEFT/RIGHT
  like every other multi-value/toggle field in Settings, not Enter-only;
  Hour/Minute merged into one Time row edited with a hand-rolled HH:MM
  digit cursor (like the Timer's), replacing the two-row DigitEditor
  popups; Repeat's "Off" label now matches the codebase-wide ON/OFF
  casing.
- Top status bar: battery icon now shares the same box height as the
  other status icons (Bluetooth/mute/etc.) instead of standing 2px
  taller, and its charge nub is properly vertically centred instead of
  drifting off-centre at non-multiple-of-4 box heights.
- Small settings-gear icon glyph tweak; wio-tracker-l1 screenshot build
  variant now enables DUAL_SERIAL.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

variants/wio-tracker-l1/platformio.ini

@@ -160,6 +160,7 @@ build_unflags = -Ofast
 build_flags = ${WioTrackerL1CompanionDual.build_flags}
   -D UI_HAS_JOYSTICK_UPDOWN=1
   -D ENABLE_SCREENSHOT
+  -D DUAL_SERIAL=1
   -Os
 extra_scripts = post:create-uf2.py