- this merges `contrib/deterministic-build/locale` and `electrum/locale`
- it is now once again possible have translations when running from a local git clone
- which was already possible in the past before crowdin removed their unauthenticated APIs
- see https://github.com/spesmilo/electrum/issues/9531
- however, the translations available are the often-old frozen strings from electrum-locale
- while previously one could just download the latest strings from crowdin
-----
closes https://github.com/spesmilo/electrum/issues/6936
Note: if we used the python crowdin client (https://github.com/crowdin/crowdin-api-client-python),
we would do something like this:
```
from crowdin_api import CrowdinClient
class MyCrowdinClient(CrowdinClient):
TOKEN = ...
client = MyCrowdinClient()
with open(locale_file_name, 'rb') as f:
resp = client.storages.add_storage(f)
storage_id = resp['data']['id']
client.source_files.update_file(projectId=crowdin_project_id, storageId=storage_id, fileId=crowdin_file_id)
client.translations.build_crowdin_project_translation(projectId=crowdin_project_id)
```
