fix: board: added forgotten "case"

src/board.c

@@ -622,27 +622,27 @@ Position* board_get_positions_for(const Board* board, const Tile* piece_tile, un
     }
 
     switch (piece_tile->piece.type) {
-        PAWN: {
+        case PAWN: {
             return board_get_pawn_moves(board, piece_tile, pos_count);
         }
 
-        KNIGHT: {
+        case KNIGHT: {
             return board_get_knight_moves(board, piece_tile, pos_count);
         }
 
-        ROOK: {
+        case ROOK: {
             return board_get_rook_moves(board, piece_tile, pos_count);
         }
 
-        BISHOP: {
+        case BISHOP: {
             return board_get_bishop_moves(board, piece_tile, pos_count);
         }
         
-        QUEEN: {
+        case QUEEN: {
             return board_get_queen_moves(board, piece_tile, pos_count);
         }
 
-        KING: {
+        case KING: {
             return board_get_king_moves(board, piece_tile, pos_count);
         }