emoji: Refactor `generate_sprite_css_files()` to take emojiset in args.
emoji: Refactor `generate_sprite_css_files()` to take emojiset in args.

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