Merge Collection and Editor

[eviterin]

Both the Collection and Editor views are similar in terms of design and functionality. They both feature a search and filter section on the left, a display of cards in the center, and a column to the right. The right column differs between the two: in Collection View, it shows all the player's decks, while in the Editor, it displays the cards in the deck being built.

Right now, we're redirecting the player between the two pages.
From Collection to Editor when either "New Deck" or an existing deck is clicked.
From Editor to Collection when either the deck save or discard button is clicked.

Instead of redirecting the player, we should just have the right column change.

This is done when:

• The editor is merged into the collection file.
• When the deck list has been refactored into its own component.
• When the card list has been refactored into its own component.

[eviterin]

Done as of PR #108