Add healthbar-indicators plugin

[Abram-Gorgis]

Flashes game-sprite icons above your character when tracked effects are about to expire, are currently active, or drop
below a configurable boost threshold.

Features:

• Track 60+ effects: combat potions, divine potions, stamina, antifire, antipoison, prayers, thralls, CoX overload,
  and more
• Setup presets for quick switching between activities (e.g. Bossing, Slayer, PvP)
• Two blink modes: "On Expire" and "While Active"
• Drop threshold alerts for skill-boost potions
• Smart positioning to avoid overlapping overhead prayer icons and the healthbar
• Zoom-aware icon scaling with adjustable sensitivity
• Configurable icon size, flash rate, and position offset

Repository: https://github.com/Abram-Gorgis/healthbar_indicators

[runelite-github-app]

New plugin healthbar-indicators: https://github.com/Abram-Gorgis/healthbar_indicators/tree/2cdc4dca265dabd74c2fd99201c1a5ebeed63d93

[runelite-github-app]

Internal use only: Reviewer details Maintainer details

[riktenx]

Pull requests which automatically pass the "RuneLite Plugin Hub Checks" and use the standard build type are now eligible for automated review. If your plugin uses the standard build.gradle script, consider adding build=standard to your runelite-plugin.properties file and update this PR.