desktop: Add screenshot functionality to the desktop app #26854

Job	Run time
Paths filter	12s
Build for browser tests	1m 56s
Test Node.js 22 / ubuntu-24.04	4m 5s
Test Node.js 22 / windows-latest	4m 46s
Test Node.js 23 / ubuntu-24.04	4m 4s
Test Node.js 23 / windows-latest	4m 40s
Test Node.js ${{ matrix.node_version }} / ${{ matrix.os }}	0s
Test in ${{ matrix.browser }}	0s
Test in chrome	1m 43s
Test in firefox	2m 50s
Test in edge	2m 13s
	26m 29s

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