style(shimmer): update rotating-symbol color to purple (#8B5CF6) #10

Job	Run time
build-linux / Build Linux x86_64	7m 55s
build-macos / Build macOS aarch64-apple-darwin	3m 43s
build-macos / Build macOS x86_64-apple-darwin	8m 51s
build-macos / Create Universal Binary	1m 3s
Create Release	10s
	21m 42s

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