Simple Quick Keys

### Added
- Hotkeys from other mods: hotkeys of Tweakeroo / MiniHUD / Litematica and similar mods can be put on a slot and fire the feature itself - no key needs to be assigned to it.
- The key picker has a Source column on the left: vanilla key binds first, then one entry per mod, each with its own search box.
- Functions on the right are grouped under category headings.

### Improved
- Slots bound to another mod's hotkey show the feature name on the card, in the tooltip and in the edit screen.
- The picker's right column now uses three columns (feature / category / key) so long names no longer overlap.
- Colour sliders save only when you release the mouse instead of writing the file every frame.

### Fixed
- Slots with only a hotkey (no item icon) showed no name and no tooltip.
- The edit screen did not show that a hotkey was bound (it now shows a read-only "Hotkey: xxx").
- Modifier keys (Shift / Ctrl / Alt) were released while physically held when triggering a combo hotkey.
- Slots went blank or errored after a hotkey was removed or renamed.
- Category names could not be searched and part of the right side of short lists did not respond.

Client-side only, nothing to install on the server. Just replace the old jar - config, colours and background image are kept.

###

### 新增
- 支持其它模组的快捷键：Tweakeroo / MiniHUD / Litematica 这类模组的热键可以直接挂到格子上，点一下就触发功能本身，不必再给它单独设键。
- 键位选择界面左侧新增「来源」栏：第一项是原版键位，之后每个模组各占一栏，不再全部混在一起；来源栏带独立搜索框。
- 右侧列表按分类分组显示，每组带小标题。

### 改进
- 绑了其它模组热键的格子会显示功能名（卡片上、悬停里、编辑界面都能看到），不再是一格空白。
- 「选择键位」界面右栏改为「功能名 / 分类 / 按键」三列，长名字不再互相挤压。
- 拖动颜色滑块只在松手时保存配置，不再每个画面帧都写一次文件。

### 修复
- 修复只绑了热键、没有物品图标的格子不显示名字、悬停也没有提示的问题。
- 修复选了其它模组热键后，编辑界面看不出已绑定的问题（现在显示只读的「热键：xxx」）。
- 修复按住 Shift / Ctrl / Alt 触发组合键时，正在按住的修饰键被一起松开的问题。
- 修复热键被删除或改名后，格子彻底空白或点击出错的问题。
- 修复右栏搜索不到分类名、以及列表较短时右侧一块区域点了没反应的问题。

纯客户端模组，服务器无需安装；覆盖安装即可，配置、颜色和背景图设置会自动沿用。