settings: Simplify is_admin logic for name changes.
settings: Simplify is_admin logic for name changes.

This now also should correctly handle when a user's state as to
whether they are an admin changes.

brainwane/zulip,timabbott/zulip,showell/zulip,eeshangarg/zulip,hackerkid/zulip,kou/zulip,kou/zulip,tommyip/zulip,shubhamdhama/zulip,punchagan/zulip,tommyip/zulip,hackerkid/zulip,jackrzhang/zulip,andersk/zulip,showell/zulip,tommyip/zulip,hackerkid/zulip,timabbott/zulip,dhcrzf/zulip,timabbott/zulip,dhcrzf/zulip,brainwane/zulip,andersk/zulip,punchagan/zulip,hackerkid/zulip,brainwane/zulip,jackrzhang/zulip,synicalsyntax/zulip,hackerkid/zulip,rishig/zulip,kou/zulip,brainwane/zulip,shubhamdhama/zulip,shubhamdhama/zulip,brainwane/zulip,shubhamdhama/zulip,dhcrzf/zulip,showell/zulip,zulip/zulip,dhcrzf/zulip,tommyip/zulip,showell/zulip,tommyip/zulip,rishig/zulip,rht/zulip,timabbott/zulip,eeshangarg/zulip,punchagan/zulip,punchagan/zulip,jackrzhang/zulip,synicalsyntax/zulip,tommyip/zulip,dhcrzf/zulip,shubhamdhama/zulip,showell/zulip,rishig/zulip,punchagan/zulip,rht/zulip,brainwane/zulip,dhcrzf/zulip,punchagan/zulip,eeshangarg/zulip,timabbott/zulip,rht/zulip,eeshangarg/zulip,shubhamdhama/zulip,jackrzhang/zulip,rishig/zulip,kou/zulip,zulip/zulip,dhcrzf/zulip,zulip/zulip,brainwane/zulip,synicalsyntax/zulip,showell/zulip,synicalsyntax/zulip,jackrzhang/zulip,timabbott/zulip,zulip/zulip,zulip/zulip,kou/zulip,rishig/zulip,showell/zulip,rht/zulip,andersk/zulip,jackrzhang/zulip,rishig/zulip,kou/zulip,rishig/zulip,eeshangarg/zulip,hackerkid/zulip,andersk/zulip,synicalsyntax/zulip,zulip/zulip,rht/zulip,eeshangarg/zulip,kou/zulip,andersk/zulip,punchagan/zulip,synicalsyntax/zulip,eeshangarg/zulip,zulip/zulip,timabbott/zulip,tommyip/zulip,jackrzhang/zulip,rht/zulip,andersk/zulip,andersk/zulip,hackerkid/zulip,synicalsyntax/zulip,rht/zulip,shubhamdhama/zulip