css: Use SCSS nesting for 700px media queries in subscriptions.scss.
css: Use SCSS nesting for 700px media queries in subscriptions.scss.

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