Extract columns area from UI component (#6650)
Extract columns area from UI component (#6650)

UI component used to toggle isComposing state by directly manipulating the
DOM element to avoid the expensive rendering.

However, it is hacky, and is not effective for other states. Instead,
this change makes the rendering cheaper by extracting the huge columns
area.
im-in-space/mastodon,kirakiratter/mastodon,mosaxiv/mastodon,dwango/mastodon,summoners-riftodon/mastodon,mimumemo/mastodon,h3zjp/mastodon,pso2club/mastodon,rutan/mastodon,tri-star/mastodon,tateisu/mastodon,dwango/mastodon,yi0713/mastodon,cybrespace/mastodon,KnzkDev/mastodon,yi0713/mastodon,salvadorpla/mastodon,Nyoho/mastodon,maa123/mastodon,unarist/mastodon,anon5r/mastonon,summoners-riftodon/mastodon,res-ac/mstdn.res.ac,danhunsaker/mastodon,amazedkoumei/mastodon,theoria24/mastodon,ikuradon/mastodon,KnzkDev/mastodon,honpya/taketodon,pointlessone/mastodon,summoners-riftodon/mastodon,Kirishima21/mastodon,Nyoho/mastodon,rekif/mastodon,tootcafe/mastodon,amazedkoumei/mastodon,imas/mastodon,PlantsNetwork/mastodon,pinfort/mastodon,h3zjp/mastodon,NS-Kazuki/mastodon,rainyday/mastodon,dunn/mastodon,Ryanaka/mastodon,PlantsNetwork/mastodon,amazedkoumei/mastodon,lindwurm/mastodon,glitch-soc/mastodon,dwango/mastodon,koba-lab/mastodon,mstdn-jp/mastodon,summoners-riftodon/mastodon,gol-cha/mastodon,clworld/mastodon,vahnj/mastodon,tootcafe/mastodon,KnzkDev/mastodon,clworld/mastodon,imas/mastodon,pointlessone/mastodon,ykzts/mastodon,mhffdq/mastodon,mimumemo/mastodon,Nyoho/mastodon,lynlynlynx/mastodon,cobodo/mastodon,ykzts/mastodon,clworld/mastodon,ikuradon/mastodon,blackle/mastodon,pso2club/mastodon,tootcafe/mastodon,pointlessone/mastodon,ambition-vietnam/mastodon,vahnj/mastodon,tootcafe/mastodon,lynlynlynx/mastodon,MastodonCloud/mastodon,yi0713/mastodon,maa123/mastodon,tootsuite/mastodon,lindwurm/mastodon,unarist/mastodon,mstdn-jp/mastodon,blackle/mastodon,masarakki/mastodon,d6rkaiz/mastodon,masarakki/mastodon,glitch-soc/mastodon,WitchesTown/mastodon,koba-lab/mastodon,NS-Kazuki/mastodon,mhffdq/mastodon,WitchesTown/mastodon,MastodonCloud/mastodon,increments/mastodon,lindwurm/mastodon,musashino205/mastodon,maa123/mastodon,rutan/mastodon,masarakki/mastodon,h3zjp/mastodon,rekif/mastodon,honpya/taketodon,blackle/mastodon,Ryanaka/mastodon,ikuradon/mastodon,tateisu/mastodon,pixiv/mastodon,kazh98/social.arnip.org,Kirishima21/mastodon,d6rkaiz/mastodon,Kirishima21/mastodon,yukimochi/mastodon,koba-lab/mastodon,cybrespace/mastodon,res-ac/mstdn.res.ac,pixiv/mastodon,SerCom-KC/mastodon,MitarashiDango/mastodon,hugogameiro/mastodon,rutan/mastodon,primenumber/mastodon,mimumemo/mastodon,rekif/mastodon,danhunsaker/mastodon,dwango/mastodon,5thfloor/ichiji-social,ikuradon/mastodon,mstdn-jp/mastodon,primenumber/mastodon,salvadorpla/mastodon,rainyday/mastodon,pinfort/mastodon,gol-cha/mastodon,kazh98/social.arnip.org,im-in-space/mastodon,dunn/mastodon,danhunsaker/mastodon,NS-Kazuki/mastodon,res-ac/mstdn.res.ac,PlantsNetwork/mastodon,Chronister/mastodon,mosaxiv/mastodon,TheInventrix/mastodon,tri-star/mastodon,anon5r/mastonon,sylph-sin-tyaku/mastodon,pso2club/mastodon,ambition-vietnam/mastodon,clworld/mastodon,yukimochi/mastodon,abcang/mastodon,MitarashiDango/mastodon,pointlessone/mastodon,d6rkaiz/mastodon,pinfort/mastodon,unarist/mastodon,tri-star/mastodon,tootsuite/mastodon,Nyoho/mastodon,TheInventrix/mastodon,tateisu/mastodon,lindwurm/mastodon,hugogameiro/mastodon,musashino205/mastodon,theoria24/mastodon,5thfloor/ichiji-social,d6rkaiz/mastodon,masto-donte-com-br/mastodon,mhffdq/mastodon,gol-cha/mastodon,increments/mastodon,cobodo/mastodon,theoria24/mastodon,vahnj/mastodon,Chronister/mastodon,riku6460/chikuwagoddon,gol-cha/mastodon,cobodo/mastodon,5thfloor/ichiji-social,SerCom-KC/mastodon,primenumber/mastodon,riku6460/chikuwagoddon,cybrespace/mastodon,masarakki/mastodon,SerCom-KC/mastodon,yukimochi/mastodon,rekif/mastodon,masto-donte-com-br/mastodon,Chronister/mastodon,SerCom-KC/mastodon,danhunsaker/mastodon,sylph-sin-tyaku/mastodon,MastodonCloud/mastodon,ambition-vietnam/mastodon,sylph-sin-tyaku/mastodon,cybrespace/mastodon,primenumber/mastodon,lynlynlynx/mastodon,increments/mastodon,ykzts/mastodon,imas/mastodon,tootsuite/mastodon,riku6460/chikuwagoddon,dunn/mastodon,Ryanaka/mastodon,ykzts/mastodon,rainyday/mastodon,PlantsNetwork/mastodon,hugogameiro/mastodon,im-in-space/mastodon,increments/mastodon,yi0713/mastodon,Chronister/mastodon,riku6460/chikuwagoddon,TheInventrix/mastodon,cobodo/mastodon,kazh98/social.arnip.org,hugogameiro/mastodon,anon5r/mastonon,lynlynlynx/mastodon,pso2club/mastodon,TheInventrix/mastodon,res-ac/mstdn.res.ac,honpya/taketodon,blackle/mastodon,musashino205/mastodon,maa123/mastodon,5thfloor/ichiji-social,kirakiratter/mastodon,salvadorpla/mastodon,mosaxiv/mastodon,masto-donte-com-br/mastodon,pixiv/mastodon,WitchesTown/mastodon,mstdn-jp/mastodon,unarist/mastodon,musashino205/mastodon,yukimochi/mastodon,MastodonCloud/mastodon,sylph-sin-tyaku/mastodon,Kirishima21/mastodon,pinfort/mastodon,h3zjp/mastodon,im-in-space/mastodon,abcang/mastodon,amazedkoumei/mastodon,kirakiratter/mastodon,kazh98/social.arnip.org,mhffdq/mastodon,theoria24/mastodon,Ryanaka/mastodon,rutan/mastodon,abcang/mastodon,glitch-soc/mastodon,masto-donte-com-br/mastodon,vahnj/mastodon,MitarashiDango/mastodon,honpya/taketodon,imas/mastodon,NS-Kazuki/mastodon,MitarashiDango/mastodon,KnzkDev/mastodon,pixiv/mastodon,vahnj/mastodon,salvadorpla/mastodon,koba-lab/mastodon,kirakiratter/mastodon,dunn/mastodon,rainyday/mastodon,glitch-soc/mastodon,abcang/mastodon,tootsuite/mastodon,tateisu/mastodon,mimumemo/mastodon,anon5r/mastonon,mosaxiv/mastodon,TheInventrix/mastodon,tri-star/mastodon,WitchesTown/mastodon,ambition-vietnam/mastodon