Feature
* feat(app): display last updated on course page ([`508e081`](https://github.com/jonbiemond/BCIT-Flex/commit/508e0818d5dfb1379f38ea863fffb53ac2e65dfe))
* feat(model): add timestamps to Course, Offering and User ([`ea0267f`](https://github.com/jonbiemond/BCIT-Flex/commit/ea0267f5a73d3a583a7fdc21662f104d1cb720e9))