Playwright Tests!

[RyanR712]

After some consideration, it seems like Selenium isn't going to be compatible with vite and vitest. Playwright, on the other hand, seems syntactically familiar to vitest and has compatibility with vite. Follow a similar checklist to issue #28 and get those tests testing!

• Install Playwright via npm
• Write high level UI unit tests that encompass all features and ensure the output is expected. Some examples:
• • Draw a complex AEG with multiple nested cuts and atoms, save it as a file, and ensure the AEG structure matches the expected values.
• • Load an AEG from a file, try to place several illegal atoms and cuts on it, save that file and ensure none were added.
• Add the entire Playwright test suite to be executable via npm script.
• Add a github workflow that runs the npm script and use it as a check for pushing to master.