Improve NaturalLanguage selector for better usability

[alexskr]

The natural language selector in the ontology submission form can be cumbersome to use. The current implementation includes the entire ISO 639-1 list, which contains many languages unlikely to be ever used in ontologies, such as Old Church Slavonic, Old Norse, Gothic, and other ancient languages. This extensive list can make it bothersome for users to find and select common languages.

Current behavior:

1. The initial drop-down selection is not super useful

2. It is not enough to type two characters en to find English, the most common language.

Proposed Improvements:

• Curate the language list to include only relevant languages that are more likely to be used in ontologies.
• Sort the list so that the most common languages appear at the top, making them easier to find and select.

These changes will enhance the user experience by making the natural language selector more user-friendly and efficient.

relates to

• Add a natural language selector to the ontology submission form #311