Fix spot-search hover highlights and spawn-set tooltip spam

[IsPherz]

Summary

• Keep spawn groups visible while cycling item/enemy spot results in player mode
• Extend Gathering-style yellow list-hover rings to Enemies and Items
• Open only the hovered spawn-set tooltip by default; optional Developer toggle restores open-all
• Hide spot-search rows that the Day/Night filter already hides on the map
• Show distinct sidebar labels for Rising vs Rising Endgame

Test plan

• st0133 Items: hover Battle Armor row → yellow rings on matching drops
• Cycle ◀▶ through drops → earlier spawn groups stay visible
• Hover one enemy → only that tooltip; enable Developer “Open all spawn-set tooltips on hover” → all SG tooltips
• Day filter → night-only Ancestor Orc (G18/I3) leaves the Enemies list
• Select Rising Endgame → sidebar shows “(Rising Endgame)”