FallenXPBar (Support for 8 languages)

## [2.0.0] - Level Plan Update

### Added
- **Level Plan window** (`/fxp plan`, Shift+click on the minimap button, or the button in settings): all quests in your log with their XP. Ready quests come first, grey quests are marked as safe to drop, and totals show how many levels your log is worth.
- **Time breakdown:** every level is split into combat, travel, dead, AFK and other, shown as a bar in the plan and in the tooltip.
- **Level history:** the time of your last levels, saved per character. Levels that started before the addon was installed are marked `*`.
- **Share:** `/fxp share` builds a short summary (level, XP/hour, breakdown, recent levels) you can copy with Ctrl+C and paste into Discord.
- **Rested planner:** shows how long until rested XP is full while you rest, and in the plan window.
- **"Next kill levels you up!"** hint when your average kill is enough to finish the level.
- **3 themes:** Modern, Minimal (a thin compact bar) and Classic (Blizzard style).
- **8 bar colors:** class color (default), dynamic red-to-green, blue, purple, green, teal, orange, red.
- Settings window redesigned in two columns. New commands: `plan`, `share`.
- All new texts in 8 languages.

### Changed
- Level time, breakdown, kill history and quest history are now saved **per character** (`FallenXPBarCharDB`). Settings stay account-wide.
- On first login the old account-wide tracking moves to the character whose level matches, and is marked `*`.