ux: hotkey tag on external merger menu items #3335

Job	Run time
Prepare version string	1m 43s
Build / Build Windows x64	3m 18s
Build / Build macOS (Apple Silicon)	2m 4s
Build / Build Linux	3m 9s
Build / Build Windows ARM64	3m 41s
Build / Build macOS (Intel)	3m 16s
Build / Build Linux (arm64)	3m 17s
Package / Package Windows (win-arm64)	19s
Package / Package Windows (win-x64)	16s
Package / Package macOS (osx-arm64)	18s
Package / Package macOS (osx-x64)	22s
Package / Package Linux (linux-arm64)	1m 5s
Package / Package Linux (linux-x64)	54s
	23m 42s

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