settings: Fix email input whitespace issue.
settings: Fix email input whitespace issue.

This fixes the issue where the email has whitespace potentially in the
input due to the HTML formatting.

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