refactor(GameView): combine style blocks for deck

[itsalaidbacklife]

Fixes issue where deck background image would flicker when transitioning from resolving seven to main phase (after seven move is finished)

Issue number

Relevant issue number

• Resolves #

Please check the following

• Do the tests still pass? (see Run the Tests)
• Is the code formatted properly? (see Linting (Formatting))
• For New Features:
  • Have tests been added to cover any new features or fixes?
  • Has the documentation been updated accordingly?

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