fix: responsive pc box

[abr-Projects]

Resolves issue #302 #247

This pull request refactors the pokemon pc box ui to make the pokemon grid responsive. The main changes include separating the grid refresh logic from the overall gui construction, adding dynamic resizing for the grid, and debounced refreshes to optimize rendering during window resizing. refresh_pokemon_grid is also called whenever pokemon is added or evolved, to keep the pokemon grid in sync.

Changes:

• Separated the pokemon grid rendering into a new refresh_pokemon_grid method, allowing the grid to be updated independently from the rest of the gui.
• The grid now recalculates number of rows and columns based on the viewport size. It is handled by listening to the resize events and using a debounced timer QTimer to avoid excessive refreshes during window resizing.
• Moved the pokemon grid into a scrollable container QScrollArea, for the handling of shrinking windows and ensuring that only fully visible slots are displayed.
• Replaced full gui rebuilds on box change, with grid refresh.
• Add refresh_pokemon_grid method calls to functions that manipulate the pokemon collection.
• Cleaned up some redundant code