QoL improvements, bug fixes for TrinityAdmin

[flashadvocate]

• Improved default button colors
• Minor cleanup of unused variables
• Improved jail behavior
  • Drop SetJail functions in place of built-in Horde and Alliance jail locations (Stockade for alliance, Crypt for Horde)
  • Hardcoded xyz coords since these locations don't appear to have named teleports
  • Freezes player so they can't escape via hearth or portal
  • Prevents player from jailing themselves or NPCs
  • No longer notifies server on jail or unjail
• Improve tab size and placement
• Fix overlapping UI elements
• Fix explore cheat command syntax

This is a somewhat more opinionated use of the jailing functions, but I've not really noticed any particular deliberate usage.

Before:

After: