Sorting to dev
- Changed names of DB getter functions from filterIn...() to get...(), ex. filterInSuggestions() to getSuggestions()
- Added sorting and filtering functionality to DB getters (getUsers, getTasks, ...)
- Changed function signature of DB getters to use "object destructuring", which enables function calls without needing to write "undefined" for optional parameters
- Cleaned up names with mixed naming conventions to all use camelCase in DB fields, function parameters and local variables