styles: Refactor #user-settings-avatar elements to use SCSS nesting feature.
styles: Refactor #user-settings-avatar elements to use SCSS nesting feature.

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