get all users and one user
Impl backend User routes
Add Posts and Comments Tables class and fix foreign key
add Msg and slugify to Utils and add implicit str2slug to Base trait
refactor routes with Exception handling in Base trait
fix tests
fix user delete test
temp fix of json seril. add maps to Users, Posts, Comments and change Role dic to Int
add user role to session
impl crud for backend routes
impl crud to frontend User route
Add frontend error handle NoSuchElementException as NotFound
Impl frontend crud for Posts, Users and Comments and fix tests
Merge branch 'feature/add-rest-endpoints' into develop