build_emoji: Add `codepoint_to_name` dict to emoji_codes.js.
build_emoji: Add `codepoint_to_name` dict to emoji_codes.js.

This dict is a mapping from codepoint to canonical name.

brockwhittaker/zulip,showell/zulip,dhcrzf/zulip,dhcrzf/zulip,timabbott/zulip,dhcrzf/zulip,rishig/zulip,amanharitsh123/zulip,verma-varsha/zulip,synicalsyntax/zulip,andersk/zulip,rishig/zulip,brainwane/zulip,dhcrzf/zulip,rishig/zulip,mahim97/zulip,kou/zulip,jackrzhang/zulip,amanharitsh123/zulip,brainwane/zulip,verma-varsha/zulip,jrowan/zulip,amanharitsh123/zulip,kou/zulip,synicalsyntax/zulip,brainwane/zulip,synicalsyntax/zulip,vaidap/zulip,shubhamdhama/zulip,jrowan/zulip,hackerkid/zulip,rht/zulip,zulip/zulip,vabs22/zulip,amanharitsh123/zulip,punchagan/zulip,timabbott/zulip,timabbott/zulip,eeshangarg/zulip,andersk/zulip,mahim97/zulip,andersk/zulip,brainwane/zulip,vabs22/zulip,brockwhittaker/zulip,Galexrt/zulip,andersk/zulip,vaidap/zulip,shubhamdhama/zulip,brockwhittaker/zulip,tommyip/zulip,vaidap/zulip,verma-varsha/zulip,mahim97/zulip,zulip/zulip,synicalsyntax/zulip,brainwane/zulip,tommyip/zulip,synicalsyntax/zulip,timabbott/zulip,jrowan/zulip,vaidap/zulip,verma-varsha/zulip,jackrzhang/zulip,showell/zulip,mahim97/zulip,showell/zulip,eeshangarg/zulip,zulip/zulip,tommyip/zulip,kou/zulip,eeshangarg/zulip,zulip/zulip,vabs22/zulip,showell/zulip,rishig/zulip,rht/zulip,shubhamdhama/zulip,shubhamdhama/zulip,timabbott/zulip,tommyip/zulip,kou/zulip,verma-varsha/zulip,timabbott/zulip,eeshangarg/zulip,Galexrt/zulip,mahim97/zulip,punchagan/zulip,punchagan/zulip,vabs22/zulip,brainwane/zulip,Galexrt/zulip,rishig/zulip,eeshangarg/zulip,jackrzhang/zulip,brockwhittaker/zulip,brockwhittaker/zulip,tommyip/zulip,kou/zulip,dhcrzf/zulip,showell/zulip,rht/zulip,vabs22/zulip,eeshangarg/zulip,Galexrt/zulip,mahim97/zulip,tommyip/zulip,zulip/zulip,hackerkid/zulip,rishig/zulip,Galexrt/zulip,jackrzhang/zulip,rht/zulip,timabbott/zulip,brockwhittaker/zulip,synicalsyntax/zulip,jrowan/zulip,rht/zulip,dhcrzf/zulip,hackerkid/zulip,vaidap/zulip,verma-varsha/zulip,synicalsyntax/zulip,jackrzhang/zulip,dhcrzf/zulip,jackrzhang/zulip,andersk/zulip,showell/zulip,punchagan/zulip,punchagan/zulip,punchagan/zulip,vaidap/zulip,shubhamdhama/zulip,amanharitsh123/zulip,hackerkid/zulip,zulip/zulip,amanharitsh123/zulip,Galexrt/zulip,kou/zulip,shubhamdhama/zulip,rishig/zulip,punchagan/zulip,jackrzhang/zulip,eeshangarg/zulip,showell/zulip,andersk/zulip,kou/zulip,hackerkid/zulip,jrowan/zulip,rht/zulip,zulip/zulip,vabs22/zulip,shubhamdhama/zulip,andersk/zulip,hackerkid/zulip,rht/zulip,jrowan/zulip,tommyip/zulip,Galexrt/zulip,hackerkid/zulip,brainwane/zulip