set en as default prompts template (Issue #125)

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes are missing coverage. Please review.

:exclamation: No coverage uploaded for pull request base (master@baf8809). Click here to learn what that means.

Files	Patch %	Lines
...otlin/cc/unitmesh/devti/template/TemplateRender.kt	0.00%	7 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #133 +/- ## ========================================= Coverage ? 14.94% ========================================= Files ? 481 Lines ? 11604 Branches ? 2203 ========================================= Hits ? 1734 Misses ? 9573 Partials ? 297 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.