Add empty state for value map/relation

[kaustuvpokharel]

Fixed:
Component was missing emptyDelegate condition, which not fixed with "no items" text as a emptyDelegateState when no features are present on the list.
Added padding to match figma design
Added drawer bottom margin

[github-actions]

Pull Request Test Coverage Report for Build 18399934587

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 3766 unchanged lines in 30 files lost coverage.
• Overall coverage decreased (-0.09%) to 19.566%

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Files with Coverage Reduction	New Missed Lines	%
build-mm-db/vcpkg_installed/x64-linux/include/Qt6/QtCore/qfunctionaltools_impl.h	1	80.0%
mm/app/attributes/attributecontroller.cpp	1	76.83%
mm/app/attributes/attributepreviewcontroller.h	1	50.0%
build-mm-db/app/Input_autogen/EWIEGA46WW/moc_activeproject.cpp	2	31.84%
build-mm-db/core/mm_core_autogen/EWIEGA46WW/moc_merginapi.cpp	3	44.77%
mm/app/main.cpp	3	35.54%
build-mm-db/vcpkg_installed/x64-linux/include/Qt6/QtCore/qvariant.h	4	66.22%
build-mm-db/app/.rcc/qmlcache/Input_qmlcache_loader.cpp	8	94.0%
build-mm-db/app/Input_autogen/7HEK2XT3N7/moc_testactiveproject.cpp	9	43.75%
build-mm-db/app/Input_autogen/7HEK2XT3N7/moc_testattributepreviewcontroller.cpp	9	41.94%

Totals
Change from base Build 18221222417:	-0.09%
Covered Lines:	13864
Relevant Lines:	70856

---

💛 - Coveralls

[tomasMizera]

We'll ship this in 2025.8.0 instead

[kaustuvpokharel]

[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	📬	artifact	Expires: 16/03/2026	#5335
Android Build	📬	Mergin Maps 745211 APK [armeabi-v7a]	Expires: 16/03/2026	#7452
Android Build	📬	Mergin Maps 745251 APK [arm64-v8a]	Expires: 16/03/2026	#7452
iOS Build	📬		Build number: 25.12.839311	#8393