Redesign conference form with improved UI organization

• Group form into logical sections with background color and headers
• Add labels and placeholder text

enabled an automatic merge when all merge checks for c6f9d1f2 pass

aborted the automatic merge because target branch was updated

added 4 commits

• c6f9d1f2...3e9e53b7 - 2 commits from branch main
• 71103f5b - Redesign conference form with improved UI organization
• 5a863675 - Fix admin dashboard user list display

Compare with previous version

Superseded by !32 (merged)

closed