stream_sidebar_row: Use tooltips for showing stream name on hover.
stream_sidebar_row: Use tooltips for showing stream name on hover.

We add some additional delay so that user doesn't have to see
them every time but it is the delay is short enough so that
a user can view the full name of long streams without waiting
too long.

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