Request to correct language name for ISO code 'blk' from 'Pa'o Karen' to 'Pa'O'

### Describe the bug

Dear Hugging Face Team,

I am writing to request a correction regarding the language display name associated with the ISO 639-3 code `blk` on the platform.

Currently, it is displayed as **"Pa'O Karen"**. However, as a native speaker and local member of the Pa'O community, this terminology is incorrect and does not accurately reflect our self-identification and cultural identity.

The correct and respectful self-designated name for our language and people is simply **"Pa'O"** (or Pa'O language). The term "Karen" appended to it is an external administrative classification that local native speakers do not accept or use.

Could you please update or provide an option to reflect **"Pa'O"** instead of "Pa'O Karen" for the `blk` language code across the platform?

Thank you very much for your understanding, respect for indigenous identity, and assistance.

Best regards,
KhunPhanDuae

### Steps to reproduce the bug

### Expected behavior

Update the display name of the language code blk from "Pa'o Karen" to "Pa'O" (ပအိုဝ်ႏ), as the local native community identifies as Pa'O, not Pa'o Karen.

### Environment info

Not applicable (This is a metadata/terminology correction request, not a software bug).

No file or test is named in the issue. Start by locating the ISO 639-3 metadata source used for the `blk` display name and check how language names are propagated across the platform. Done means the displayed name is updated from "Pa'o Karen" to "Pa'O" (ပအိုဝ်ႏ) for code `blk`.

Written by the indexing model from the issue text.