Add option to clone custom widgets and its contents to another view #3335

Job	Run time
Test	1m 23s
deploy-blueos-extension	1m 27s
deploy-cloud	0s
deploy-electron (macos-13, mac, x64, dmg, latest-mac.yml)	8m 10s
deploy-electron (ubuntu-latest, linux, x86_64, AppImage, latest-linux.yml)	3m 19s
deploy-page	1m 12s
deploy-flatpak (ubuntu-latest, linux, x86_64, flatpak)	9m 28s
deploy-electron (ubuntu-24-arm, linux, arm64, AppImage, latest-linux-arm64.yml)	7m 4s
deploy-flatpak (ubuntu-24-arm, linux, arm64, flatpak)	14m 38s
deploy-electron (windows-latest, win, x64, exe, latest.yml)	6m 11s
	52m 52s

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