Fixes#1179
This update fixes several issues related to bot behavior in battlegrounds when the player dies and releases spirit:
- Removed conflicting strategies (+stay / +follow): Bots were being told to follow and stay simultaneously each tick, causing oscillating movement ("stuttering"). The +stay strategy is now skipped in BGs to allow bots to continue objectives normally.
- Disabled follow while in BG: When the player died, bots attempted to return to the player repeatedly, abandoning objective-based movement. PlayerbotAI now sets -follow while in BGs to keep bots engaged with the objectives.
- Prevented dead bots from following ghosts: Previously, dead bots would follow ghost players away from the graveyard and potentially miss Rez. Bots now wait at the spirit healer when dead in BGs.
- Removed redundant strategy changes and messages in ReleaseSpiritAction as they no longer apply in battleground contexts.
