Remove source editor and use from solid-ui

[SharonStrats]

Remove the source editor and use the one from solid-ui.

Blocking: this needs to go in first SolidOS/solid-ui#852

[Copilot]

Pull request overview

This PR removes the in-repo CodeMirror-based source editor implementation and switches SourceEditorCard to use the CodeEditor provided by solid-ui, reducing direct editor implementation and dependency surface in this package.

Changes:

• Replaced dynamic import/instantiation of the local SourceEditor with solid-ui’s CodeEditor in SourceEditorCard.
• Removed the local SourceEditor implementation and its dedicated unit test.
• Dropped direct CodeMirror-related dependencies from package.json and updated the lockfile accordingly; bumped package version.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/sourceEditor.test.js	Removes tests for the deleted local SourceEditor.
src/components/source-editor-card/SourceEditorCard.ts	Switches editor initialization from local SourceEditor to solid-ui CodeEditor.
src/components/source-editor-card/SourceEditor.ts	Removes the local CodeMirror-based editor implementation.
package.json	Bumps version and removes direct CodeMirror-related dependencies.
package-lock.json	Removes CodeMirror-related transitive packages (but needs version alignment with package.json).

Suppressed comments (1)

src/components/source-editor-card/SourceEditorCard.ts:130

• Switching from the local SourceEditor to solid-ui's CodeEditor changes the editor initialization behavior (module import path, constructor, initialize signature, dirty callback wiring), but the current unit tests don’t assert that this initialization runs successfully or that the dirty callback updates fileExplorerContext.edit.updateDirtyState. Consider adding a test that mocks solid-ui's CodeEditor and verifies initialize(...) is called with the expected args and that invoking the provided dirty callback updates the dirty state.

      const { CodeEditor } = await import('solid-ui')
      this._originalContent = sourceContext.originalContent
      this._originalContentType = sourceContext.editorMetadata.contentType
      this._editor = new CodeEditor()
      const { content, contentType } = await this._getViewContent()
      await this._editor.initialize(sourcePaneEditor, content, contentType, 'dark', dirty => {
        this.updateDirtyState(dirty)
      })

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