Fixed how the community buttons look on macos

[Adish-Singh]

Summary
This pull request updates the styling of several Swing JButton components within the CommunityView to ensure consistent appearance across operating systems, particularly macOS, where Swing's default button rendering differs from Windows. By explicitly configuring button opacity, border painting, focus painting, and preferred sizing, the UI now displays reliably and uniformly on both platforms.

Motivation
Swing buttons on macOS often render with default Aqua-style gradients, borders, and focus indicators even when background colors or sizes are applied. This caused discrepancies in the UI compared to Windows, including:

• Custom background colors not appearing unless setOpaque(true) is set.
• Default macOS borders overriding button styling unless setBorderPainted(false) is used.
• macOS focus ring appearing unless disabled with setFocusPainted(false).
• Platform differences in button sizing unless an explicit PreferredSize is defined.

These changes were introduced to ensure that the community view buttons maintain a consistent visual style across all development environments.

Changes Included

1. Post Review Button

• Configured to override macOS default rendering and match Windows appearance:
  postReviewButton.setPreferredSize(new Dimension(150, 40));
  postReviewButton.setBackground(new Color(70, 130, 180));
  postReviewButton.setForeground(Color.WHITE);
  postReviewButton.setOpaque(true);
  postReviewButton.setBorderPainted(false);
  postReviewButton.setFocusPainted(false);

2. Refresh Review Button

• Applied the same styling changes to maintain uniformity:
  refreshReviewButton.setPreferredSize(new Dimension(150, 40));
  refreshReviewButton.setBackground(new Color(70, 130, 180));
  refreshReviewButton.setForeground(Color.WHITE);
  refreshReviewButton.setOpaque(true);
  refreshReviewButton.setBorderPainted(false);
  refreshReviewButton.setFocusPainted(false);

3. Add to Liked Button

• Standardized visual presentation, including explicit opacity and border settings:
  addButton.setBackground(new Color(60, 179, 113));
  addButton.setOpaque(true);
  addButton.setBorderPainted(false);
  addButton.setForeground(Color.WHITE);
  addButton.setPreferredSize(new Dimension(140, 35));
  addButton.setFocusPainted(false);

Impact
Improves cross-platform visual consistency of the GUI.
Eliminates reliance on OS-specific default UI rendering.
Provides a uniform, modern, flat-style button appearance across all supported platforms.
No impact on application logic; this PR only modifies presentation properties.

Testing
Changes were verified on both macOS and Windows to confirm that:

• Background colors apply correctly on macOS.
• No Aqua border or focus ring appears.
• Button dimensions render identically across platforms.
• Styling is consistent throughout the community view.

Files Modified
CommunityView.java

[matthew-SG]

Thank you for fixing the button transparency issue for Mac users.