css: Remove font size hardcoding of save/discard button.
css: Remove font size hardcoding of save/discard button.

andersk/zulip,punchagan/zulip,eeshangarg/zulip,andersk/zulip,hackerkid/zulip,zulip/zulip,punchagan/zulip,andersk/zulip,kou/zulip,hackerkid/zulip,rht/zulip,andersk/zulip,andersk/zulip,eeshangarg/zulip,hackerkid/zulip,rht/zulip,rht/zulip,rht/zulip,punchagan/zulip,hackerkid/zulip,zulip/zulip,eeshangarg/zulip,punchagan/zulip,hackerkid/zulip,rht/zulip,rht/zulip,eeshangarg/zulip,zulip/zulip,punchagan/zulip,andersk/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,eeshangarg/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip,kou/zulip,punchagan/zulip,kou/zulip,hackerkid/zulip,andersk/zulip,punchagan/zulip,kou/zulip,kou/zulip,hackerkid/zulip,zulip/zulip,zulip/zulip,zulip/zulip