Remove No Project option from workspace menu

[SivanCola]

Summary

• Removes the “No project” action from the workspace switcher menu.
• Keeps the existing project list and “Add new project” action intact.

Root Cause

• The workspace switcher rendered an explicit action that called the folder picker with an empty path, exposing a “No project” option that should no longer be available in the UI.

Technical Approach

• Removed the menu action that selected an empty workspace path.
• Removed the now-unused FolderX icon import from the composer component.

Focused Optimization Points

• Kept the change scoped to the workspace menu rendering path.
• Avoided changing locale strings or workspace switching behavior outside the removed action.

Verification

• PATH="/Users//.cache/codex-runtimes/codex-primary-runtime/dependencies/node/bin:$PATH" ./node_modules/.bin/tsc --noEmit
• Verified in the local browser UI that the workspace menu still shows project entries and “Add new project”, while “No project” is no longer shown.