Refactor Editor component to eliminate ESLint config overrides

[coderabbitai]

Description

The src/components/Editor/index.tsx file currently requires ESLint config overrides to bypass code complexity limits:

• max-lines: ["error", 400] (increased from 350)
• max-lines-per-function: ["error", 180]
• max-statements: ["error", 25]

These overrides indicate that the Editor component has grown too large and complex, making it difficult to maintain and understand.

Proposed Solution

Refactor the Editor component by:

1. Extract utility functions: Move standalone functions like getSelectedLogEventNum, handleCopyLogEventAction, handleToggleWordWrapAction, and handleEditorCustomAction to separate utility files
2. Create smaller sub-components: Break down the main Editor component into focused sub-components (e.g., EditorActions, EditorDecorations, etc.)
3. Custom hooks: Extract complex useEffect logic into custom hooks for better separation of concerns
4. Separate constants: Move configuration and constants to dedicated files

Benefits

• Improved code maintainability and readability
• Better testability with smaller, focused units
• Elimination of ESLint overrides
• Enhanced developer experience

Context

Referenced from PR #305 and comment