css: SCSS nesting in night_mode.scss for `.alert`.
css: SCSS nesting in night_mode.scss for `.alert`.

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