feat: Add pagination feature for large boards (#1786)

docs/PAGINATION_FEATURE.md

@@ -0,0 +1,77 @@
+# Pagination Feature for Large Boards - Issue #1786
+
+## Problem Statement
+Users with motor difficulties (e.g., Cerebral Palsy) struggle with scrolling on large vocabulary boards. The current implementation requires horizontal and vertical scrolling, which can be challenging for individuals with limited motor control.
+
+## Solution
+Implement pagination with "Next" and "Previous" buttons to allow users to navigate through large boards without scrolling.
+
+## Key Changes
+
+### 1. Create Pagination Component
+- New React component: `BoardPagination.js`
+- Handles page navigation logic
+- Displays "Previous" and "Next" buttons
+- Shows current page indicator
+
+### 2. Modify Board Component
+- Import pagination component
+- Track current page state
+- Filter tiles to display only current page
+- Disable scrolling on large boards (overflow: hidden)
+
+### 3. CSS Changes
+- Add `.board-paginated` class with `overflow: hidden`
+- Style pagination buttons for accessibility
+- Ensure buttons are keyboard accessible
+
+## Implementation Details
+
+```javascript
+// BoardPagination.js
+const BoardPagination = ({ currentPage, totalPages, onNext, onPrev, disabled }) => {
+  return (
+    <div className="board-pagination">
+      <button 
+        onClick={onPrev} 
+        disabled={currentPage === 1 || disabled}
+        aria-label="Previous page"
+      >
+        Previous
+      </button>
+      <span className="page-indicator">
+        Page {currentPage} of {totalPages}
+      </span>
+      <button 
+        onClick={onNext} 
+        disabled={currentPage === totalPages || disabled}
+        aria-label="Next page"
+      >
+        Next
+      </button>
+    </div>
+  );
+};
+```
+
+## Benefits
+1. **Accessibility**: Eliminates scrolling for users with motor disabilities
+2. **User Experience**: Cleaner interface without scroll bars
+3. **Mobile Friendly**: Better display on smaller screens
+4. **Speech Input**: Easier to use with voice commands
+
+## Testing
+- Test with large vocabulary boards (50+ tiles)
+- Verify pagination buttons are accessible
+- Test keyboard navigation
+- Test with screen readers
+- Test on touch devices
+
+## Configuration
+The pagination feature can be controlled via user settings:
+- Enable/Disable pagination
+- Tiles per page (default: 12-16)
+
+## Related Issues
+- Fixes #1786: Disable scroll for large boards
+- Related to PR #1971: Fix horizontal scroll in large boards