docs(language): Enforce English on contributions and issues (#11267)

Author: lucasssvaz

Diff for: .github/ISSUE_TEMPLATE/Feature-request.yml

@@ -5,6 +5,7 @@ body:
   - type: markdown
     attributes:
       value: |
+        * Please note that we can only process feature requests reported in English to ensure effective communication and support. Feature requests written in other languages will be closed, with a request to rewrite them in English.
         * We welcome any ideas or feature requests! It is helpful if you can explain exactly why the feature would be useful.
         * There are usually some outstanding feature requests in the [existing issues list](https://github.com/espressif/arduino-esp32/issues?q=is%3Aopen+is%3Aissue+label%3A%22Type%3A+Feature+request%22), feel free to add comments to them.
         * If you would like to contribute, please read the [contributions guide](https://docs.espressif.com/projects/arduino-esp32/en/latest/contributing.html).

Diff for: .github/ISSUE_TEMPLATE/Issue-report.yml

@@ -5,6 +5,7 @@ body:
   - type: markdown
     attributes:
       value: |
+        * Please note that we can only process issues reported in English to ensure effective communication and support. Issues written in other languages will be closed, with a request to rewrite them in English.
         * Before reporting a new issue please check and search in [List of existing issues](https://github.com/espressif/arduino-esp32/issues?q=is%3Aissue)
         * Please check [Online Documentation](https://docs.espressif.com/projects/arduino-esp32/en/latest/index.html)
         * Take a look on [Troubleshooting guide](https://docs.espressif.com/projects/arduino-esp32/en/latest/troubleshooting.html)

Diff for: docs/en/contributing.rst

@@ -15,6 +15,9 @@ Before Contributing
 
 Before sending us a Pull Request, please consider this:
 
+* All contributions must be written in English to ensure effective communication and support.
+  Pull Requests written in other languages will be closed, with a request to rewrite them in English.
+
 * Is the contribution entirely your own work, or is it already licensed under an LGPL 2.1 compatible Open Source License?
   If not, cannot accept it.