GuildEventManager

- Modified close button in event details
- Added Menu button in event details to acces the event context menu
- Added previous and next buttons in event details
- Fixed tooltip modification causing issues when using stubby
- Fixed a bug in the Grid modules causing lines to not properly hide in some cases
- Redesigned the event details window allowing to collapse the limits frame in order to have more space for the player list
- Reset of the playerlist params because of adding columns
- Optimizing Grid modules for better performance
- Fixed a bug in the controls recycling functions causing trouble with textures in some cases