Cobblemon: Extended Battle UI

Patch version with bug fixes:

• Multi-hit move damage - Fixed damage tracking showing incorrect values (was calculating each hit from original HP)
• Damage rounding - Now shows decimals when needed so totals add up correctly
• Spectating/server pokeballs - Team indicators now update properly when spectating or on servers
• Triple battle pokeballs - Fixed positioning so they no longer overlap health bars
• Scrollbar clickable - Battle log scrollbar can now be clicked and dragged
• Resize behavior - No longer expands opposite direction when hitting screen edges
• Top resize zone - Reduced sensitivity, easier to drag panel vs resize
• Battle log header - Removed empty space at top