When searching by CRN, highlight course section found

[zacwood9]

If the user searches by CRN, they are brought to the course page the contains the section with the CRN. However, if there are many sections, it's not obvious which section was found by the query. Highlight the section card with that matched the query.

[Nicholas-Thor-Page]

Looks like the css broke somewhere during all the merge conflict resolution. I'm going to try and fix this myself but for consistensy sake I'm going to reopen the issue

Edit: to be specific, the course section is not highlighted anymore.