css: Use SCSS nesting in zulip.scss for `.home-error-bar`.
css: Use SCSS nesting in zulip.scss for `.home-error-bar`.

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