chore: Remove old frontend docs #497

Job	Run time
General Pull Request Checks / Run Cargo Deny (bans licenses sources)	58s
General Pull Request Checks / Run Cargo Tests	4m 9s
General Pull Request Checks / Run RustDoc	9m 17s
General Pull Request Checks / Run Cargo Deny (advisories)	48s
General Pull Request Checks / Run Cargo Udeps	8m 44s
General Pull Request Checks / All tests passed	2s
Helm Chart Check	26s
Publish amd64 Image	16m 3s
Publish arm64 Image	14m 31s
Build and publish manifest list	50s
	55m 48s

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