Fixes and Improvements:
- Fixed FOAM_CURRENT_DIR to use posix style paths (#1573)
- Fixed highlight of alias in wikilinks (#1451)
- Fixed excessive blank lines in link reference definitions (#1558, #1561)
- Added node color mode dropdown in graph with options: 'none', 'Directory' (#1570)
- Added appearance panel in graph webview (#1555)
- Added forces panel in graph (#1554)
- Added selection panel in graph (#1556)