left_sidebar: Replace search icon with filter icon.
left_sidebar: Replace search icon with filter icon.

kou/zulip,andersk/zulip,rht/zulip,hackerkid/zulip,kou/zulip,punchagan/zulip,rht/zulip,kou/zulip,zulip/zulip,rht/zulip,punchagan/zulip,punchagan/zulip,eeshangarg/zulip,hackerkid/zulip,andersk/zulip,rht/zulip,rht/zulip,eeshangarg/zulip,kou/zulip,hackerkid/zulip,punchagan/zulip,andersk/zulip,hackerkid/zulip,punchagan/zulip,zulip/zulip,andersk/zulip,zulip/zulip,eeshangarg/zulip,rht/zulip,eeshangarg/zulip,hackerkid/zulip,kou/zulip,zulip/zulip,eeshangarg/zulip,punchagan/zulip,andersk/zulip,zulip/zulip,zulip/zulip,eeshangarg/zulip,zulip/zulip,punchagan/zulip,kou/zulip,andersk/zulip,andersk/zulip,hackerkid/zulip,hackerkid/zulip,kou/zulip,eeshangarg/zulip,rht/zulip