search: Remove search close button when narrowed to home view.
search: Remove search close button when narrowed to home view.

Fixes #6426
shubhamdhama/zulip,amanharitsh123/zulip,punchagan/zulip,shubhamdhama/zulip,brockwhittaker/zulip,jackrzhang/zulip,zulip/zulip,timabbott/zulip,timabbott/zulip,verma-varsha/zulip,tommyip/zulip,timabbott/zulip,brainwane/zulip,eeshangarg/zulip,brockwhittaker/zulip,hackerkid/zulip,andersk/zulip,hackerkid/zulip,dhcrzf/zulip,hackerkid/zulip,showell/zulip,mahim97/zulip,jackrzhang/zulip,synicalsyntax/zulip,Galexrt/zulip,kou/zulip,verma-varsha/zulip,punchagan/zulip,Galexrt/zulip,zulip/zulip,synicalsyntax/zulip,hackerkid/zulip,hackerkid/zulip,rishig/zulip,tommyip/zulip,rht/zulip,kou/zulip,kou/zulip,jackrzhang/zulip,dhcrzf/zulip,mahim97/zulip,rishig/zulip,dhcrzf/zulip,zulip/zulip,rishig/zulip,andersk/zulip,synicalsyntax/zulip,showell/zulip,shubhamdhama/zulip,zulip/zulip,timabbott/zulip,brockwhittaker/zulip,amanharitsh123/zulip,jackrzhang/zulip,dhcrzf/zulip,brainwane/zulip,kou/zulip,jackrzhang/zulip,amanharitsh123/zulip,rht/zulip,showell/zulip,verma-varsha/zulip,tommyip/zulip,brainwane/zulip,kou/zulip,jackrzhang/zulip,mahim97/zulip,dhcrzf/zulip,brockwhittaker/zulip,Galexrt/zulip,brainwane/zulip,brainwane/zulip,dhcrzf/zulip,rht/zulip,verma-varsha/zulip,andersk/zulip,timabbott/zulip,Galexrt/zulip,rht/zulip,showell/zulip,punchagan/zulip,tommyip/zulip,mahim97/zulip,andersk/zulip,andersk/zulip,andersk/zulip,Galexrt/zulip,andersk/zulip,shubhamdhama/zulip,zulip/zulip,amanharitsh123/zulip,verma-varsha/zulip,mahim97/zulip,eeshangarg/zulip,eeshangarg/zulip,rishig/zulip,eeshangarg/zulip,eeshangarg/zulip,synicalsyntax/zulip,Galexrt/zulip,punchagan/zulip,zulip/zulip,eeshangarg/zulip,Galexrt/zulip,synicalsyntax/zulip,eeshangarg/zulip,punchagan/zulip,synicalsyntax/zulip,hackerkid/zulip,brainwane/zulip,kou/zulip,rishig/zulip,showell/zulip,punchagan/zulip,showell/zulip,shubhamdhama/zulip,tommyip/zulip,zulip/zulip,timabbott/zulip,punchagan/zulip,amanharitsh123/zulip,rishig/zulip,jackrzhang/zulip,verma-varsha/zulip,tommyip/zulip,brockwhittaker/zulip,rht/zulip,brainwane/zulip,rishig/zulip,hackerkid/zulip,rht/zulip,synicalsyntax/zulip,timabbott/zulip,shubhamdhama/zulip,showell/zulip,dhcrzf/zulip,rht/zulip,brockwhittaker/zulip,mahim97/zulip,tommyip/zulip,amanharitsh123/zulip,kou/zulip,shubhamdhama/zulip