Multiple auras per indicator position

[Royaleint]

Summary

Currently each indicator position shows only the first matching aura. Option to show multiple active auras at a single position as stacked sub-icons.

Details

• New display mode: "stacked icons" — up to 4 matching auras as smaller sub-icons
• Configurable direction (horizontal, vertical, grid)
• Each sub-icon retains countdown/stack display
• Alternative: cycle through matches on a timer (rotate every 1-2 seconds)
• Default unchanged (first match) — opt-in per-position setting
• Partially overlaps with priority chains (Priority-chain indicators — "show X, else Y, else Z" per slot #15) — different use case (show everything vs show most important)

Source

ERF #33. Important for PvP (stacked DoTs), tracking multiple HoTs, boss encounters with overlapping debuffs.

Backlog: TRI-020