ui: Replenish the missing ‘PageIsSignUp’ in sign up view (#11390)
ui: Replenish the missing ‘PageIsSignUp’ in sign up view (#11390)

Signed-off-by: a1012112796 <0a2492404be0c6c42b907cdcd1cb97449035f950@qq.com>
vdbt/gitea,sapk-fork/gitea,cez81/gitea,lafriks/gitea,go-gitea/gitea,sapk-fork/gitea,lafriks/gitea,vdbt/gitea,sapk-fork/gitea,go-gitea/gitea,cez81/gitea,vCaesar/gitea,sapk-fork/gitea,cez81/gitea,vCaesar/gitea,lafriks/gitea,go-gitea/gitea