refactor: simplify GitHub stars badge component #15

Job	Run time
build (linux/arm64, web)	3m 2s
build (linux/amd64, backend)	1m 3s
build (linux/arm64, backend)	43s
build (linux/amd64, web)	3m 18s
tag_release	-6s
create_manifest (surfsense-web, web)	19s
create_manifest (surfsense-backend, backend)	16s
	8m 35s

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