Add install script and cross-publish releases to public launchapp-dev… #15

Job	Run time
Web UI Gates	3m 40s
Build (aarch64-apple-darwin)	5m 57s
Build (x86_64-apple-darwin)	8m 32s
Build (x86_64-unknown-linux-gnu)	10m 15s
Build (x86_64-pc-windows-msvc)	19m 13s
Publish GitHub release (tags only)	9s
Publish to public repo (tags only)	9s
Web UI Gates	3m 40s
Build (aarch64-apple-darwin)	5m 57s
Build (x86_64-apple-darwin)	8m 32s
Build (x86_64-unknown-linux-gnu)	10m 15s
Build (x86_64-pc-windows-msvc)	19m 13s
Publish to public repo (tags only)	7s
Publish GitHub release (tags only)	9s
Web UI Gates	3m 40s
Build (x86_64-apple-darwin)	8m 32s
Build (x86_64-unknown-linux-gnu)	10m 15s
Build (x86_64-pc-windows-msvc)	19m 13s
Build (aarch64-apple-darwin)	5m 57s
Publish to public repo (tags only)	13s
Publish GitHub release (tags only)	9s
	2h 23m 47s

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