Add support for changing and uploading avatars

[tjementum]

Summary & Motivation

Introduce functionality allowing users to change their avatars, with an option to upload a new avatar when saving their User Profile. Supported formats include JPEG, PNG, GIF, and WebP, providing users with flexibility in avatar choices.

Address several issues with Gravatar handling: users without Gravatars now correctly avoid default Gravatar images, and the system gracefully handles timeouts when fetching Gravatars, returning a Not Found status if an image is missing. Additionally, the user profile no longer displays a broken image for users without an avatar.

The recently introduced GravatarClient has been decoupled from the Users feature, enabling more modular use across the application.

To streamline avatar uploads, a strongly-typed api.uploadFile method has been implemented, enhancing type safety and usability.

Lastly, an issue in RepositoryBase.Update has been fixed to prevent unnecessary entity fetching during updates, improving efficiency.

Checklist

• [x] I have added a Label to the pull-request
• [x] I have added tests, and done manual regression tests
• [x] I have updated the documentation, if necessary

[linear[bot]]

PP-238 Enable avatar change on user profile

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
1 Accepted issue

Measures
0 Security Hotspots
11.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[raix]

@tjementum any reason for not using a regular multipart form?

[raix]

Example: https://github.com/tinytek-io/PlatformPlatform/blob/typescript/application/account-management/WebApp/shared/components/userModals/UserProfileModal.tsx#L45