refactor: Use Set for popular emojis.
refactor: Use Set for popular emojis.

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