Show description of each group of mods on mod selection screen

Currently, you need to click into each mod to see what the mod is for / whether the mod is no longer recommended or there are alternative options / requirements for the mod.

It would be good if we could group the mods together and describe them right on the index page, so the user doesn't need to click into every mod for information.

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Higurashi Description Text (explain about console here or have own section for console?)

Higurashi Buttons

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Umineko Q/A Description Text

Umineko Q/A Buttons

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Umineko Legacy Description Text

Umineko Legacy Buttons
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- [x] Separate mods into groups (not sure if all umineko should be grouped as one, or as above)
- [ ] Add a description before each group of mods explaining what they are
- [ ] Decide how to handle Higurashi Console arcs
- [x] Remove description on individual umineko pages about alternative patch options

查看模組選擇畫面的 UI 程式碼，以了解目前模組的列出和分組方式。確定要在每個模組群組之前添加描述性文字區塊的位置。檢查現有的模組資料結構，查看群組是否已定義或需要建立。透過執行修補程式來測試變更，並驗證描述是否正確顯示且不會破壞版面配置。

由索引模型根據 Issue 內容生成。