make it easier to review translations in the pull request

[moodysalem]

Is your feature request related to a problem? Please describe.
i would like to see just the new translations or translation changes in the pull request for downloaded translations, rather than all the context changes

Describe the solution you'd like
would be great if the default pr description offered a summary of the changes

Describe alternatives you've considered
n/a

Additional context
just context changes:

[andrii-bodnar]

@moodysalem could you please follow the "Feature Request" template for suggesting enhancements?

Also, please describe in more detail what you mean by "summary of changes".

Thank you.

[moodysalem]

Also, please describe in more detail what you mean by "summary of changes".

I moved some code around without changing any copy, extracted and uploaded the translations automatically via GH actions, then the download github action sent this PR with +/-2705 LOC for all the new context line numbers in the translation files

Really difficult for me to figure out based on this what's actually being downloaded

[andrii-bodnar]

The GH Action uses the CLI which uses the Build Project Translation API to download translation.

It returns just a ZIP archive with the translation files and there is no meta-information about the downloaded translations.

[moodysalem]

The github action could summarize the changes contained in the git diff for all the .po files

For example:

100 translations had their context updated


## es.po
### New translations:
`Connect wallet` -> `Conecte monedaro`

### Updated translations:
`Conecte monedaro` -> ``
...

and so on, in a markdown table for example

the github pr description is currently wasted if it only contains some random fixed description