Add: Edit icon and tooltip hint on selected dive button

[Rolf-Smit]

The selected dive button now shows a small edit icon to signal that tapping it again opens the dive configuration sheet. A tooltip keeps showing until the user opens the dive configuration sheet at least once.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 49.12281% with 29 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.26%. Comparing base (925171a) to head (cd273dc).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...p/abysner/presentation/component/DefaultTooltip.kt	0.00%	15 Missing ⚠️
.../presentation/component/PathwayButtonsComponent.kt	71.87%	7 Missing and 2 partials ⚠️
...abysner/presentation/screens/planner/PlanScreen.kt	66.66%	2 Missing ⚠️
...resentation/screens/planner/PlanScreenViewModel.kt	33.33%	2 Missing ⚠️
...app/abysner/domain/settings/model/SettingsModel.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #165      +/-   ##
==========================================
+ Coverage   52.25%   52.26%   +0.01%     
==========================================
  Files         139      140       +1     
  Lines        7598     7653      +55     
  Branches      927      933       +6     
==========================================
+ Hits         3970     4000      +30     
- Misses       3284     3308      +24     
- Partials      344      345       +1     

Flag	Coverage Δ
domain	77.83% <0.00%> (-0.06%)	⬇️
presentation	46.04% <50.00%> (+0.08%)	⬆️

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