Add a "Recent" Category to the Home Screen

[hlargen5]

As a user, I would like to easily access the phrases I use most frequently all in one category on the home screen.

Acceptance Criteria:

• Add a "Recent" category to the Home Screen (with clock icon).
• The 9 most recently used phrases (excluding the number pad) should automatically appear in this category, without the user needing to add them.
• The "Recent" category can reordered and hidden in the category list, but a user cannot tap the arrow to see the detail view.
• An error state should be shown if there are no frequently used phrases.

Design:

https://www.figma.com/file/mNrwUygVhTmuWnKNHHkenR/Vocable-New?node-id=1%3A141