総評をMarkdownとしてレンダリング

[kimurash]

Issue

• Close 総評のMarkdownをレンダリングする #218

目的

見やすくするため

やったこと

タイトル参照

動作確認

けいすけに直接見せる

[Copilot]

Pull Request Overview

This PR switches feedback rendering to markdown, updates a character’s question count, and adds a necessary dependency.

• Render general feedback using react-markdown instead of raw text.
• Reduce Yuzu's totalQuestion from 5 to 1.
• Add react-markdown to project dependencies.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
frontend/src/webview/src/screens/general-feedback-screen/components/FeedbackBox.tsx	Replace Typography with ReactMarkdown for markdown support
frontend/src/webview/src/data/create-characters.ts	Change Yuzu's totalQuestion from 5 to 1 and reorder imports
frontend/package.json	Add react-markdown dependency

Comments suppressed due to low confidence (1)

frontend/src/webview/src/data/create-characters.ts:12

• The totalQuestion value for Yuzu was changed from 5 to 1, which alters core behavior. Ensure existing unit and integration tests are updated or added to cover this new question count.

      totalQuestion: 1,

[cercil0605]

修正してマージ