Modes; allow click on focusInput overlays.
Modes; allow click on focusInput overlays.

This is @mrmr1993's trick from #1258.
See: https://github.com/philc/vimium/pull/1258/files

borgified/vimium,PickRelated/vimium,gdh1995/vimium,hhsue/vimium,decaffeinate-examples/vimium,cyrixhero/vimium,philc/vimium,elegantwww/vimium,smblott-github/vimium,poacher2k/vimium,justalittlenoob/vimium,zhangmin510/vimium,cyrixhero/vimium,PickRelated/vimium,mrmr1993/vimium,wildeyes/vimium,douglas-larocca/vimium,hhsue/vimium,philc/vimium,willsALMANJ/vimium,willsALMANJ/vimium,hhsue/vimium,wildeyes/vimium,borgified/vimium,Robinson10240/vimium,cyrixhero/vimium,mrmr1993/vimium,dimatter/vimium,Robinson10240/vimium,zhangmin510/vimium,bkudria/vimium,smblott-github/vimium,decaffeinate-examples/vimium,Robinson10240/vimium,elderbas/vimium,Lw-Cui/vimium,Lw-Cui/vimium,borgified/vimium,poacher2k/vimium,elegantwww/vimium,elderbas/vimium,zhangmin510/vimium,csmalin/vimium,gdh1995/vimium,elegantwww/vimium,decaffeinate-examples/vimium,Lw-Cui/vimium,wildeyes/vimium,PickRelated/vimium,bkudria/vimium,smblott-github/vimium,PrestanceDesign/vimium,Aleroniponi/vimium,justalittlenoob/vimium,dimatter/vimium,tuchangwei/vimium,mrmr1993/vimium,VPashkov/vimium,justalittlenoob/vimium,Aleroniponi/vimium,PrestanceDesign/vimium,tuchangwei/vimium,PrestanceDesign/vimium,willsALMANJ/vimium,VPashkov/vimium,dimatter/vimium,Aleroniponi/vimium,VPashkov/vimium,gdh1995/vimium,douglas-larocca/vimium,bkudria/vimium,tuchangwei/vimium,csmalin/vimium,csmalin/vimium,douglas-larocca/vimium,poacher2k/vimium,philc/vimium,elderbas/vimium