stream_creation_form: Fix footer padding overlapping with text.
stream_creation_form: Fix footer padding overlapping with text.

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