Renamed some page files
Implemented page for password entry details

- One page can now show, create and edit details of one password entry
Finished renaming of QML files
Swipe instead of buttons

- Edit pages for entry and groups should be used so that the user does not need to search for a button but instead simply swipe left or right (for accept/save or cancel/discard)
- Work in progress currently
- The same needs to be done for password page later