compose: Change borders from gray to translucent.
compose: Change borders from gray to translucent.

This works better on color backgrounds while staying the same on white.
The compose input borders are also darkened slightly.

rht/zulip,andersk/zulip,brainwane/zulip,jackrzhang/zulip,kou/zulip,synicalsyntax/zulip,punchagan/zulip,brainwane/zulip,shubhamdhama/zulip,jackrzhang/zulip,jackrzhang/zulip,eeshangarg/zulip,mahim97/zulip,punchagan/zulip,zulip/zulip,rht/zulip,tommyip/zulip,rht/zulip,synicalsyntax/zulip,rishig/zulip,timabbott/zulip,rishig/zulip,synicalsyntax/zulip,dhcrzf/zulip,shubhamdhama/zulip,rishig/zulip,eeshangarg/zulip,eeshangarg/zulip,timabbott/zulip,dhcrzf/zulip,kou/zulip,dhcrzf/zulip,jackrzhang/zulip,zulip/zulip,andersk/zulip,hackerkid/zulip,jackrzhang/zulip,mahim97/zulip,showell/zulip,shubhamdhama/zulip,andersk/zulip,andersk/zulip,showell/zulip,eeshangarg/zulip,rishig/zulip,dhcrzf/zulip,rht/zulip,mahim97/zulip,andersk/zulip,timabbott/zulip,jackrzhang/zulip,kou/zulip,synicalsyntax/zulip,timabbott/zulip,tommyip/zulip,zulip/zulip,showell/zulip,kou/zulip,tommyip/zulip,zulip/zulip,synicalsyntax/zulip,hackerkid/zulip,zulip/zulip,tommyip/zulip,hackerkid/zulip,synicalsyntax/zulip,zulip/zulip,tommyip/zulip,andersk/zulip,synicalsyntax/zulip,showell/zulip,tommyip/zulip,hackerkid/zulip,brainwane/zulip,hackerkid/zulip,punchagan/zulip,kou/zulip,showell/zulip,punchagan/zulip,brainwane/zulip,dhcrzf/zulip,tommyip/zulip,showell/zulip,mahim97/zulip,punchagan/zulip,mahim97/zulip,shubhamdhama/zulip,kou/zulip,mahim97/zulip,rishig/zulip,rishig/zulip,brainwane/zulip,zulip/zulip,hackerkid/zulip,rht/zulip,andersk/zulip,rishig/zulip,eeshangarg/zulip,shubhamdhama/zulip,eeshangarg/zulip,kou/zulip,punchagan/zulip,shubhamdhama/zulip,timabbott/zulip,timabbott/zulip,dhcrzf/zulip,timabbott/zulip,brainwane/zulip,hackerkid/zulip,dhcrzf/zulip,jackrzhang/zulip,rht/zulip,shubhamdhama/zulip,brainwane/zulip,rht/zulip,eeshangarg/zulip,punchagan/zulip,showell/zulip