Really prevent find mode from matching its own searches.
Really prevent find mode from matching its own searches.

We do this by hiding the HUD before each search -- this should be 100%
foolproof.

Zero-width spaces did not do the job at all, while spaces of font size 0
were not always invisible (see e1e178b).

zhangmin510/vimium,elegantwww/vimium,poacher2k/vimium,bkudria/vimium,hhsue/vimium,elderbas/vimium,cyrixhero/vimium,justalittlenoob/vimium,bkudria/vimium,csmalin/vimium,shaung/vimium,elderbas/vimium,poacher2k/vimium,decaffeinate-examples/vimium,elderbas/vimium,dimatter/vimium,smblott-github/vimium,borgified/vimium,elegantwww/vimium,willsALMANJ/vimium,dimatter/vimium,wildeyes/vimium,jb55/vimium-plus,cyrixhero/vimium,mrmr1993/vimium,smblott-github/vimium-smblott,poacher2k/vimium,zhangmin510/vimium,Robinson10240/vimium,Aleroniponi/vimium,Lw-Cui/vimium,hhsue/vimium,PrestanceDesign/vimium,smblott-github/vimium,csmalin/vimium,douglas-larocca/vimium,llimllib/vimium,zhangmin510/vimium,elegantwww/vimium,borgified/vimium,gdh1995/vimium,PickRelated/vimium,philc/vimium,decaffeinate-examples/vimium,willsALMANJ/vimium,VPashkov/vimium,borgified/vimium,Robinson10240/vimium,justalittlenoob/vimium,douglas-larocca/vimium,Aleroniponi/vimium,tuchangwei/vimium,smblott-github/vimium-smblott,wildeyes/vimium,tuchangwei/vimium,VPashkov/vimium,bkudria/vimium,csmalin/vimium,Lw-Cui/vimium,PrestanceDesign/vimium,gdh1995/vimium,douglas-larocca/vimium,philc/vimium,mrmr1993/vimium,VPashkov/vimium,mrmr1993/vimium,willsALMANJ/vimium,tuchangwei/vimium,dimatter/vimium,PrestanceDesign/vimium,crazypenguincode/vimium,gdh1995/vimium,PickRelated/vimium,PickRelated/vimium,decaffeinate-examples/vimium,Robinson10240/vimium,Lw-Cui/vimium,wildeyes/vimium,cyrixhero/vimium,hhsue/vimium,philc/vimium,crazypenguincode/vimium,jb55/vimium-plus,justalittlenoob/vimium,smblott-github/vimium,Aleroniponi/vimium