feat: add ability to upload photos

[djaiss]

This PR adds photo upload capabilities to a contact. It's a fork of the PR #2112 that was too big.

@asbiin I haven't done the API methods for this, like I did for documents. I don't think we should allow the upload of files through the API for now (simply because... I don't know how to deal with uploads through an API) 😀

What has been done:

• add a new tab under the profile of a contact, called photos
• this tab is empty by default
• you can upload photos if your account allows you to
• there is the same upload mechanism that the one used on the documents
• the Storage tab under Settings has been updated to include the photos now
• the global method that checks if the user is above its account storage limit has also been updated.

[sonarqubecloud]

SonarQube analysis found issues:
Bugs: 0
Vulnerabilities: 0
Code Smells: 2

See all issues in SonarCloud

[asbiin]

OK, for the API part we can do this later then.

[djaiss]

@asbiin just updated the description at the top to indicate what has been done in this PR.

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