Gat Unit Frames

New Features

• Texture Selector Dropdown: Replaced the "Use solid texture" checkbox with a visual texture selector
  dropdown for all bar types (health, power, cast)
• Each dropdown shows a live texture preview alongside the texture name
• 6 texture options available: Solid, Default, Raid, Skills, Tooltip, Chat

Improvements

• Separate texture selection for each bar type (health bar, power bar, cast bar can now use different
  textures)
• Visual preview in dropdown makes it easier to see what each texture looks like before selecting

Technical

• Added migration logic to automatically convert old useSolidTexture boolean settings to the new texture path format
• Existing users with "Use solid texture" enabled will automatically migrate to the "Solid" texture option