feat: add support for setting zoom level of web assets via web UI

[nicomiguelino]

Description

• This pull request is a follow-up to feat: add WebView support for zoom level in web pages #2378
• Adds support for configuring zoom level of web assets via the web interface

Checklist · General

• I have performed a self-review of my own code.
• New and existing unit tests pass locally and on CI with my changes.
• I have done an end-to-end test for Raspberry Pi devices.
• I have tested my changes for x86 devices.
• I added a documentation for the changes I have made (when necessary).

Checklist · Detailed

• Update database schema to support zoom level for web assets.
  • See the following Qt documentation about setting the zoom factor in QWebEngine for details: https://doc.qt.io/qt-6/qwebengineview.html#zoomFactor-prop
• Update relevant REST API endpoints to support zoom level as a parameter.
• Add a field in the Edit Asset form for the zoom level.
• Write unit tests if possible.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud