Fix: IME uncommitted text color and add skip_claude_md config

[MahmoudAdelbghany]

This PR fixes two issues:

1. Adds a skip_claude_md configuration option to bypass loading ~/.claude/CLAUDE.md during initialization. Fixes Feature: Add config option to skip reading ~/.claude/CLAUDE.md #1138
2. Modifies textarea rendering components to explicitly set selectionFg and selectionBg props to dynamically use the theme's text color. This ensures IME uncommitted text inherits the correct color in light themes. Fixes bug: IME uncommitted text appears white in light theme (hardcoded foreground color) #1141

[filipeborato]

@MahmoudAdelbghany
Interesting, several files have been corrected. Were you able to test locally?

[MahmoudAdelbghany]

Yes, tested locally and all working. The many files that changed are obsolete leftover references to opencode.