v23.03

• #126: Added a year slider for random questions
• #137: add github action checks for linting and unit testing on commit and pr by @g3ner1c
• #139: Hide powermarks until the answer is revealed by @BLCRAFT210
• Added dedicated backup page
• Add bolding for power for all tossups
• Question cards on /db page can be collapsed
• Fix bug with ANSWER: ANSWER: showing in cards in multiplayer
• Add permanent multiplayer rooms
• Exceeding max payload size in websocket no longer crashes the server
• Correctly parse mixed parentheses
• Account for more cases when hyphens are present
• Add special accept answers (e.g. 1984 and wavefunction)
• answer-checker: account for presence of (s) at end of words; accept ordinals (1st, 2nd, etc.) and cm and mm for centimeters and millimeters

Full Changelog: 23.02...23.03