Add Categories object for managing categories
Add mixin and isArray utility functions needed by Categories object
Update tests
Show categories in list view
Add Function.prototype.bind polyfill for testing
Allow order by categories instead of alphabetically
Allow passing an empty string or null as animation to prevent animation altogether
Show category in record view; Add categories view for changing the category of a record
Use set name as category when importing secustore backup
Allow adding new categories
Add select element for selecting the category color when creating a new category
Minor styling fixes
Allow editing an existing category
Allow removing categories
Allow selecting no category in category view
Fix typo
Merge branch 'feature-categories'