Pruning unused translations and adding relevant ones

[LuchoTurtle]

I was initially going to work on finishing #1403 (comment) but since #1414 has already been merged, I realised that some translations were needed and other weren't used. So I've refactored it!

In addition, I've added a warning in the README file regarding https://github.com/natsuk4ze/gal, as some permissions need to be added to some files (as noted in #1403 (comment)).

This should be a quick merge 👌

[EchoEllet]

Thanks

[EchoEllet]

@singerdmx I made the message clearer to know if we are saving the image using network or from local storage (cached) just for testing purposes, do we need to have separate translations, one for network saved image and another for storage?

[LuchoTurtle]

Yeah, I was a bit hesitant about having specific translations for each scenario, as it doesn't seem really useful to the end user.
But I kept it because I didn't want to meddle too much with the pre-existing code.

[EchoEllet]

Yeah, I was a bit hesitant about having specific translations for each scenario, as it doesn't seem really useful to the end user. But I kept it because I didn't want to meddle too much with the pre-existing code.

I thought the team would probably change the pull request code but I kept it like this so they could test it directly in the UI

so I remind them to change it if they want to

but it might be helpful to the end user to know if this image is from the cloud, by image URL, or locally in the sandboxed directory of the app