Revised for biblibre/3.2_community: Reformat of suggestions management interface...

Revised for biblibre/3.2_community: Reformat of suggestions management interface (Bug 3844)

Changes and fixes include:

- Moving filters forms into left-hand sidebar
- Making filter forms collapsed by default (click to show)
- Converting "check all" to text link to match similar controls on other pages
- Correcting case of tab labels
- Fixing display of custom reason field
- Converting radio buttons to drop-down for more compact display
- Table-sorter column exclusions
- Markup corrections