feat(ui-lvgl): title bar with the clock, tidier controls, contextual nav bar

Density from less chrome instead of smaller rows (ROW_H stays 44):
- titled screens drop the status bar; the title bar (APPBAR_H) holds back,
  the title, the screen's actions and the time/battery on a pill; the status
  bar returns for Home, the map, typing, the quick panel and the lock
- one radius (RADIUS) for everything tapped: buttons, tabs, choices, chips
- tabs are all segmented at TAB_H in the body (GPS, Clock converted)
- Nodes: chips row + sort + status line become one toolbar row with
  Show / Order choices; Messages' All/Favourites is the same choice
- nav map: the target bar only while there is a target; the pin opens one
  "Places" popup; back from a map options page restores the map and Map
  tools as left, without a jump
- node detail actions at the top of the scroll; Home tiles fill the page
- rowsFit() leaves growing labels to the flex (a screen title cut to one
  letter after Messages' filter changed)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/solo/contacts.md

@@ -8,6 +8,11 @@ filters by type (All, Fav, Companions, Repeaters, Rooms, Sensors); the sort,
 by distance or by last heard, is in the options. A ★ marks a favourite, a ♦
 someone sharing their position live.
 
+> [!NOTE]
+> **Wio Tracker L2:** the line over the list holds the count and two choices,
+> which nodes to show and in what order; **Scan** and the map are in the
+> title bar.
+
 **Enter** shows a node's details. **Hold Enter**, in the list or the details,
 for what you can do with it: