chore: Remove old frontend docs #148

Job	Run time
General Pull Request Checks / Run Cargo Tests	3m 48s
General Pull Request Checks / Run Cargo Deny (advisories)	1m 28s
General Pull Request Checks / Run Cargo Udeps	8m 41s
General Pull Request Checks / Run RustDoc	9m 8s
General Pull Request Checks / Run Cargo Deny (bans licenses sources)	50s
General Pull Request Checks / All tests passed	2s
	23m 57s

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