desktop: Add screenshot functionality to the desktop app #26855

Job	Run time
Paths filter	6s
Build for browser tests	1m 50s
Test Node.js 22 / ubuntu-24.04	4m 4s
Test Node.js 22 / windows-latest	4m 30s
Test in ${{ matrix.browser }}	0s
Test Node.js 23 / ubuntu-24.04	3m 53s
Test Node.js ${{ matrix.node_version }} / ${{ matrix.os }}	0s
Test Node.js 23 / windows-latest	6m 49s
Test in chrome	1m 43s
Test in firefox	2m 44s
Test in edge	2m 21s
	28m 0s

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