Fix minor position issues on iOS

[Withalion]

Fixes:

• elevation info icon showing EGM model when using uknown
• elevation available when outside local geoid model while using mocked position

[github-actions]

📦 Build Artifacts Ready

OS	Status	Build	Info	Workflow run
macOS Build	📭	Build not yet complete or failed.
linux Build	📭	Build not yet complete or failed.
win64 Build	📬	Mergin Maps 56531 win64	Expires: 01/06/2026	#5653
Android Build	📬	Mergin Maps 776811 APK [armeabi-v7a]	Expires: 01/06/2026	#7768
Android Build	📬	Mergin Maps 776851 APK [arm64-v8a]	Expires: 01/06/2026	#7768
iOS Build	📬		Build number: 26.03.870911	#8709

[github-actions]

Pull Request Test Coverage Report for Build 22631998068

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 11 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.003%) to 59.866%

---

Files with Coverage Reduction	New Missed Lines	%
mm/app/attributes/attributecontroller.cpp	1	76.83%
mm/app/layerfeaturesmodel.cpp	1	80.47%
mm/app/position/positiontransformer.cpp	9	84.82%

Totals
Change from base Build 22587481131:	-0.003%
Covered Lines:	8783
Relevant Lines:	14671

---

💛 - Coveralls

[github-actions]

📦 Build Artifacts Ready

OS	Status	Build	Info	Workflow run
macOS Build	📭	Build not yet complete or failed.
linux Build	📭	Build not yet complete or failed.
win64 Build	📬	Mergin Maps 56591 win64	Expires: 01/06/2026	#5659
Android Build	📭	Build not yet complete or failed.
iOS Build	📬		Build number: 26.03.871511	#8715

[github-actions]

📦 Build Artifacts Ready

OS	Status	Build	Info	Workflow run
macOS Build	📬	Mergin Maps 64651 dmg	Expires: 01/06/2026	#6465
linux Build	📬	Mergin Maps 64761 x86_64	Expires: 01/06/2026	#6476
win64 Build	📬	Mergin Maps 56601 win64	Expires: 01/06/2026	#5660
Android Build	📬	Mergin Maps 777551 APK [arm64-v8a]	Expires: 01/06/2026	#7775
Android Build	📬	Mergin Maps 777511 APK [armeabi-v7a]	Expires: 01/06/2026	#7775
iOS Build	📬		Build number: 26.03.871611	#8716