The `create()` function did not initialize all arrays, which caused them to be `undefined` instead of empty.
Signed-off-by: David Mehren <git@herrmehren.de>
TypeORM does not like having application code in the constructor (https://github.com/typeorm/typeorm/issues/1772#issuecomment-514787854), therefore that is moved into a new `create() static method. Additionally, the constructor is now `private`, which enforces the use of the new method.
Signed-off-by: David Mehren <git@herrmehren.de>
We now use the new permissions split in users and groups. Also the note now knows the colors of its authors.
Signed-off-by: David Mehren <git@herrmehren.de>
