chore: MongoDB container persistence

chore: Proper env configuration

feat: Route for getting note by ID

fix: add yarn.lock in Dockerfile

docker node images already contain yarn :thinking:

feat: yarn in Dockerfile

feat: extensions in uploads filenames

fix: same default value for all habit completions

feat: auto-restart

fix: incorrect Habit#completedTimes calculations

fix: exact same tokens for every User instance

added env var for specifying uploads base url

docker uploads dir

docker

initial commit