Support Multiple Configuration File Formats (JS, MJS, CJS, TS)

### Description of the problem

Currently, Gitmoji CLI only supports a single configuration file format: gitmoji-rc.json.
This limits flexibility for projects that could benefit from dynamic or typed configurations.

Supporting multiple file formats (including JavaScript and TypeScript) would allow configuration logic to be centralized and reused across tools.

### Solution

Enable Gitmoji CLI to support additional configuration formats:

- gitmoji.config.js
- gitmoji.config.ts
- maybe others ...

### Alternatives

_No response_

### Additional context

_No response_

### Validations

- [x] Follow our [Code of Conduct](https://github.com/carloscuesta/gitmoji-cli/blob/master/CODE_OF_CONDUCT.md)
- [x] Read the [Contributing Guide](https://github.com/carloscuesta/gitmoji-cli/blob/master/.github/CONTRIBUTING.md).
- [x] Check that there isn't already an issue requesting the same feature.

Start by locating where Gitmoji CLI currently discovers and loads gitmoji-rc.json. Determine how JavaScript and TypeScript configuration files would be selected and loaded, then define supported formats and behavior for each. Done means the CLI accepts the requested configuration formats without breaking the existing JSON format.

Written by the indexing model from the issue text.