embedded bots: Use get_active_user helper to look up users.
embedded bots: Use get_active_user helper to look up users.

This should have no effect, but is part of a larger effort to avoid
using get_user (not get_active_user) unless we actually want inactive
users.

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