Improve toolbar button order
For checklists, please priorize the menu option "Sort by" over the options "Add a new note" and "Open note" so that it is displayed as first toolbar icon by default.

This will increase consistency with the toolbar of text notes where there is also a note-type specific button ("Search") at the first position instead of the general "Add a new note" option.
Furthermore by doing so, you will fix an issue that occurs on smartphones: Currently the toolbar button "Add a new note" is exclusively displayed at checklists (see right picture top) which leads to risk of confusion with the "new checklist item" floating button (see right picture bottom). However after the change, it will no longer being displayed as one of two toolbar icons.
Fixes #488