Enhance: Improve game mechanics and visuals in GameView and GameBoard

- Increased glow effect and adjusted border properties for better visual appeal.
- Updated block size calculation to ensure proper fitting within the view.
- Modified rotation logic in GameBoard to include advanced wall kick mechanics for smoother gameplay.
- Adjusted piece spawning to start from the top row and refined hold mechanics.
- Added getter and setter for rotation index in Tetromino for better encapsulation.

app/src/main/java/com/pixelmintdrop/model/Tetromino.kt

@@ -17,6 +17,21 @@ class Tetromino(val type: TetrominoType) {
     var x = 0
     var y = 0
     
+    /**
+     * Get the current rotation index (0-3)
+     */
+    fun getRotationIndex(): Int {
+        return currentRotation
+    }
+
+    /**
+     * Set the current rotation index (0-3)
+     * Internal visibility allows access within the same module (e.g., from GameBoard)
+     */
+    internal fun setRotationIndex(index: Int) {
+        currentRotation = index.coerceIn(0, 3) // Ensure value stays within 0-3
+    }
+    
     /**
      * Get the current shape of the tetromino based on rotation
      */