Pull request

Description

Switch to Coil 3.0.3. This update was not proposed by Dependabot because the artifact id was changed.
Coil3 doesn't provide out-of-the-box network capabilities by default. So I've added the proper dependencies, and set up the Coil singleton.
See the migration guide.

Changes made

• Update to Coil 3.0.3.
• Update to Gradle 8.11.1.

Checklist

• APIs have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• New unit tests have been written (if relevant).
• The demo has been updated (if relevant).