Create a Intellij IDEA plugin

### Describe the feature or problem you'd like to solve

Currently there it's not possible to view the diff of generated files when running Copilot CLI inside Intellij IDEA terminal

### Proposed solution

* Plugin created allowing to view diff inside Intellij IDEA natively.
* Claude Code have their plugin: https://plugins.jetbrains.com/plugin/27310-claude-code-beta-

### Example prompts or workflows

_No response_

### Additional context

_No response_