Start migration away from global top app bar

[poliver]

Removes global top app bar in favor of local ones for the following screens. A new extension function NavDestination.hasGlobalAppBar() was added to Main.kt to exclude screens from global top app bar usage to support incremental migration. There are no visual changes. This should unblock #3010.

• ConnectionsRoutes.Connections
• ContactsRoutes.Contacts
• MapRoutes.Map
• NodeDetailRoutes.NodeMap
• NodesRoutes.Nodes
• NodesRoutes.NodeDetail
• SettingsRoutes.Settings

Screen_recording_20250917_164852.webm

[jamesarich]

Couple of nits - looks good 👍

[jamesarich]

can this go away now?

[poliver]

Yep, removed here #3129

[jamesarich]

Probably want to address this at some point and hoist appropriately.

[poliver]

This isn't introduced by this PR. I was actually starting on decoupling screens from UiViewModel, but I noticed some screens using UiViewModel.setTitle(). Global app bar seemed reasonable to tackle first.

[jamesarich]

Sounds like a plan.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 456 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.09%. Comparing base (e4bfce0) to head (8b3f3b0).
⚠️ Report is 13 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
.../com/geeksville/mesh/ui/settings/SettingsScreen.kt	0.00%	135 Missing ⚠️
...eeksville/mesh/ui/connections/ConnectionsScreen.kt	0.00%	129 Missing ⚠️
...i/connections/components/CurrentlyConnectedInfo.kt	0.00%	39 Missing ⚠️
...ain/java/com/geeksville/mesh/ui/node/NodeDetail.kt	0.00%	36 Missing ⚠️
...in/java/com/geeksville/mesh/ui/contact/Contacts.kt	0.00%	31 Missing ⚠️
...va/com/geeksville/mesh/navigation/MapNavigation.kt	0.00%	24 Missing ⚠️
app/src/main/java/com/geeksville/mesh/ui/Main.kt	0.00%	15 Missing ⚠️
...ain/java/com/geeksville/mesh/ui/node/NodeScreen.kt	0.00%	13 Missing ⚠️
.../com/geeksville/mesh/navigation/NodesNavigation.kt	0.00%	11 Missing ⚠️
...m/geeksville/mesh/navigation/SettingsNavigation.kt	0.00%	8 Missing ⚠️
... and 5 more

Additional details and impacted files

@@           Coverage Diff            @@
##            main   #3132      +/-   ##
========================================
- Coverage   0.09%   0.09%   -0.01%     
========================================
  Files        322     322              
  Lines      21920   22026     +106     
  Branches    2537    2545       +8     
========================================
  Hits          21      21              
- Misses     21896   22002     +106     
  Partials       3       3              

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