Remove dep on mobile-sdk (Hello vcpkg)

[PeterPetrik]

Move vcpkg build of dependancies to main mobile repo, so we are not dependent on 2 separate repos anymore.

fixes #620

[github-actions]

Pull Request Test Coverage Report for Build 17454806243

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-40.2%) to 19.571%

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Totals
Change from base Build 17407935984:	-40.2%
Covered Lines:	13867
Relevant Lines:	70855

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💛 - Coveralls

[Withalion]

Some notes from using VCPKG on Fedora 41:

• There was a necessary fix for patchelf (dependency of FFMPEG I think)
• Openssl doesn't work out of the box on Fedora 41/42, but workaround exists Linux app fails to communicate on Fedora 41 #3801
• While using wayland on host, build is using x11
  • qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
• Bluetooth is not working out of the box
  • qt.bluetooth: Dummy backend running. Qt Bluetooth module is non-functional.
• New error, I'm not sure to what it's tied (SQLite ?)
  • Case insensitive sorting unsupported in the posix collation implementation

[tomasMizera]

For future reference: https://doc.qt.io/qt-6/build-optimized-qt.html We should be able to optimize the app size this way

[Withalion]

should also fix #4000