settings_data: Move checks for nobody and owners_only case to user_has_permission.
settings_data: Move checks for nobody and owners_only case to user_has_permission.

kou/zulip,eeshangarg/zulip,eeshangarg/zulip,rht/zulip,rht/zulip,zulip/zulip,andersk/zulip,kou/zulip,rht/zulip,kou/zulip,zulip/zulip,zulip/zulip,andersk/zulip,kou/zulip,rht/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,andersk/zulip,eeshangarg/zulip,andersk/zulip,zulip/zulip,rht/zulip,eeshangarg/zulip,andersk/zulip,rht/zulip,zulip/zulip,kou/zulip,eeshangarg/zulip,andersk/zulip,zulip/zulip,andersk/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip