Add ability to edit/delete reviews, refactor review components

[js0mmer]

Description

• Add edit and delete buttons to reviews you've written
• Updated author icon to match style of verified icon
• refactored review, subreview, reviewform, userreviews components
• link reviews on reviews page to respective course/professor

Screenshots

Steps to verify/test this change:

• [ ] Edit and delete buttons appear on authored reviews on the user reviews page and course/professor pages
• [ ] Edit review form shows correct course and/or professor in title
• [ ] Current values of the review form should be preloaded
• [ ] Form validation should be reset if a user edits the same review twice in a row (should not see any green outlines or checkmarks when editing the second time)
• [ ] Should NOT be able to change course or professor when editing from user reviews page
• [ ] Should be able to change professor but not course when editing from course page
• [ ] Should be able to change course but not professor when editing from professor page
• [ ] Changes (edit or delete) should reflect immediately
• [ ] Changes (edit or delete) should persist after reloading the page
• [ ] Adding a review for a professor still functions as normal
• [ ] Adding a review for a course still functions as normal

Next steps

• Use professor name not ucinetid for reviews and edit review form on user page
  • include space between course department & number too for consistency

Final Checks:

• [ ] Verify successful deployment

(optional)

• [ ] Write tests
• [ ] Write documentation

Issues

Closes #273, closes #428