docs: Spell "front end" as "frontend" consistently.
docs: Spell "front end" as "frontend" consistently.

I think it makes sense avoid diversity here.
zulip/zulip,zulip/zulip,kou/zulip,hackerkid/zulip,showell/zulip,eeshangarg/zulip,punchagan/zulip,kou/zulip,zulip/zulip,hackerkid/zulip,punchagan/zulip,rht/zulip,eeshangarg/zulip,hackerkid/zulip,kou/zulip,zulip/zulip,andersk/zulip,showell/zulip,punchagan/zulip,rht/zulip,andersk/zulip,punchagan/zulip,kou/zulip,eeshangarg/zulip,andersk/zulip,rht/zulip,punchagan/zulip,zulip/zulip,showell/zulip,showell/zulip,zulip/zulip,punchagan/zulip,eeshangarg/zulip,eeshangarg/zulip,hackerkid/zulip,showell/zulip,showell/zulip,rht/zulip,kou/zulip,andersk/zulip,andersk/zulip,showell/zulip,hackerkid/zulip,rht/zulip,eeshangarg/zulip,hackerkid/zulip,andersk/zulip,punchagan/zulip,andersk/zulip,kou/zulip,hackerkid/zulip,zulip/zulip,kou/zulip,eeshangarg/zulip,rht/zulip,rht/zulip