activity: Rename effective rate column to rate.
activity: Rename effective rate column to rate.

punchagan/zulip,hackerkid/zulip,andersk/zulip,kou/zulip,andersk/zulip,eeshangarg/zulip,rht/zulip,punchagan/zulip,rht/zulip,zulip/zulip,punchagan/zulip,rht/zulip,eeshangarg/zulip,rht/zulip,kou/zulip,zulip/zulip,andersk/zulip,hackerkid/zulip,eeshangarg/zulip,rht/zulip,andersk/zulip,kou/zulip,hackerkid/zulip,zulip/zulip,kou/zulip,eeshangarg/zulip,andersk/zulip,rht/zulip,kou/zulip,hackerkid/zulip,hackerkid/zulip,kou/zulip,zulip/zulip,hackerkid/zulip,kou/zulip,andersk/zulip,eeshangarg/zulip,andersk/zulip,eeshangarg/zulip,zulip/zulip,punchagan/zulip,hackerkid/zulip,punchagan/zulip,zulip/zulip,zulip/zulip,eeshangarg/zulip,punchagan/zulip,punchagan/zulip,rht/zulip