refactor: Move clean_query further up the stack.
refactor: Move clean_query further up the stack.

This moves clean_query into all the callers
of query_matches_source_attrs.

This doesn't change anything performance-wise,
but it sets up future commits.

eeshangarg/zulip,showell/zulip,eeshangarg/zulip,eeshangarg/zulip,timabbott/zulip,rht/zulip,showell/zulip,hackerkid/zulip,hackerkid/zulip,timabbott/zulip,hackerkid/zulip,synicalsyntax/zulip,shubhamdhama/zulip,shubhamdhama/zulip,brainwane/zulip,zulip/zulip,showell/zulip,punchagan/zulip,zulip/zulip,hackerkid/zulip,timabbott/zulip,timabbott/zulip,eeshangarg/zulip,shubhamdhama/zulip,shubhamdhama/zulip,andersk/zulip,showell/zulip,kou/zulip,zulip/zulip,brainwane/zulip,rht/zulip,synicalsyntax/zulip,eeshangarg/zulip,timabbott/zulip,brainwane/zulip,kou/zulip,kou/zulip,rht/zulip,synicalsyntax/zulip,punchagan/zulip,synicalsyntax/zulip,kou/zulip,eeshangarg/zulip,timabbott/zulip,brainwane/zulip,punchagan/zulip,andersk/zulip,hackerkid/zulip,punchagan/zulip,rht/zulip,timabbott/zulip,andersk/zulip,brainwane/zulip,eeshangarg/zulip,zulip/zulip,kou/zulip,kou/zulip,shubhamdhama/zulip,synicalsyntax/zulip,punchagan/zulip,showell/zulip,punchagan/zulip,hackerkid/zulip,zulip/zulip,zulip/zulip,rht/zulip,andersk/zulip,rht/zulip,andersk/zulip,synicalsyntax/zulip,showell/zulip,kou/zulip,andersk/zulip,brainwane/zulip,zulip/zulip,brainwane/zulip,hackerkid/zulip,showell/zulip,andersk/zulip,shubhamdhama/zulip,punchagan/zulip,synicalsyntax/zulip,rht/zulip,shubhamdhama/zulip