loading-spinner: Fix improper display in upload avatar setting.
loading-spinner: Fix improper display in upload avatar setting.

In this commit we fix the improper display of loading spinner in
upload avatar setting upon uploading new avatar repetitively one
after the other.

dhcrzf/zulip,vabs22/zulip,rishig/zulip,j831/zulip,ryanbackman/zulip,dhcrzf/zulip,synicalsyntax/zulip,synicalsyntax/zulip,andersk/zulip,vaidap/zulip,jackrzhang/zulip,jphilipsen05/zulip,SmartPeople/zulip,andersk/zulip,vaidap/zulip,synicalsyntax/zulip,rishig/zulip,shubhamdhama/zulip,verma-varsha/zulip,punchagan/zulip,shubhamdhama/zulip,jrowan/zulip,amanharitsh123/zulip,vaidap/zulip,eeshangarg/zulip,jrowan/zulip,vabs22/zulip,dhcrzf/zulip,showell/zulip,jrowan/zulip,dhcrzf/zulip,rishig/zulip,jackrzhang/zulip,ryanbackman/zulip,christi3k/zulip,mahim97/zulip,amanharitsh123/zulip,hackerkid/zulip,SmartPeople/zulip,kou/zulip,christi3k/zulip,amanharitsh123/zulip,mahim97/zulip,vabs22/zulip,tommyip/zulip,jphilipsen05/zulip,christi3k/zulip,jrowan/zulip,zulip/zulip,amanharitsh123/zulip,shubhamdhama/zulip,synicalsyntax/zulip,dhcrzf/zulip,punchagan/zulip,punchagan/zulip,timabbott/zulip,andersk/zulip,Galexrt/zulip,andersk/zulip,Galexrt/zulip,jphilipsen05/zulip,rht/zulip,zulip/zulip,brockwhittaker/zulip,mahim97/zulip,timabbott/zulip,zulip/zulip,kou/zulip,hackerkid/zulip,punchagan/zulip,ryanbackman/zulip,vabs22/zulip,showell/zulip,hackerkid/zulip,kou/zulip,rht/zulip,andersk/zulip,amanharitsh123/zulip,synicalsyntax/zulip,brockwhittaker/zulip,verma-varsha/zulip,brockwhittaker/zulip,dhcrzf/zulip,Galexrt/zulip,SmartPeople/zulip,brockwhittaker/zulip,christi3k/zulip,timabbott/zulip,brainwane/zulip,rht/zulip,SmartPeople/zulip,showell/zulip,verma-varsha/zulip,ryanbackman/zulip,showell/zulip,vaidap/zulip,synicalsyntax/zulip,verma-varsha/zulip,jrowan/zulip,jackrzhang/zulip,shubhamdhama/zulip,punchagan/zulip,andersk/zulip,hackerkid/zulip,timabbott/zulip,jackrzhang/zulip,rht/zulip,tommyip/zulip,Galexrt/zulip,hackerkid/zulip,rishig/zulip,brainwane/zulip,tommyip/zulip,verma-varsha/zulip,eeshangarg/zulip,dhcrzf/zulip,tommyip/zulip,eeshangarg/zulip,Galexrt/zulip,zulip/zulip,mahim97/zulip,jphilipsen05/zulip,showell/zulip,rht/zulip,rht/zulip,amanharitsh123/zulip,punchagan/zulip,Galexrt/zulip,synicalsyntax/zulip,eeshangarg/zulip,shubhamdhama/zulip,rishig/zulip,brainwane/zulip,kou/zulip,jrowan/zulip,j831/zulip,Galexrt/zulip,verma-varsha/zulip,kou/zulip,kou/zulip,SmartPeople/zulip,shubhamdhama/zulip,j831/zulip,christi3k/zulip,brockwhittaker/zulip,jphilipsen05/zulip,jackrzhang/zulip,hackerkid/zulip,brainwane/zulip,tommyip/zulip,tommyip/zulip,timabbott/zulip,jphilipsen05/zulip,brainwane/zulip,mahim97/zulip,eeshangarg/zulip,zulip/zulip,brainwane/zulip,eeshangarg/zulip,j831/zulip,SmartPeople/zulip,hackerkid/zulip,j831/zulip,zulip/zulip,ryanbackman/zulip,eeshangarg/zulip,mahim97/zulip,zulip/zulip,ryanbackman/zulip,showell/zulip,timabbott/zulip,vaidap/zulip,brockwhittaker/zulip,j831/zulip,punchagan/zulip,brainwane/zulip,jackrzhang/zulip,rht/zulip,andersk/zulip,showell/zulip,vaidap/zulip,rishig/zulip,shubhamdhama/zulip,vabs22/zulip,christi3k/zulip,jackrzhang/zulip,timabbott/zulip,rishig/zulip,tommyip/zulip,kou/zulip,vabs22/zulip