style: Increase width of gear menu to avoid distracting hover.
style: Increase width of gear menu to avoid distracting hover.

The comment explains the reasoning, but this should make it a lot
easier for users to visually focus on the menu items in the sidebar.

Changed by tabbott to use the same width as the right sidebar itself.

Inspired by #17169.

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