[Console] Fix GitHub icon licensing (#4515)

[yykaue]

Purpose

The source LICENSE incorrectly classified assets/icons/github.svg under Apache 2.0. This change replaces the SVG with a verifiable MIT-licensed Ant Design Icons source and corrects the source and distribution licensing information.

Closes #4515

Changes

• Replace the GitHub icon using a pinned upstream commit, retaining its existing dimensions and blue color.
• Include the complete MIT license and Ant UED copyright in the SVG and a dedicated license file.
• Correct the root LICENSE and synchronize the distribution LICENSE, NOTICE files, and license generation template.
• Identify the GitHub mark as a trademark of GitHub, Inc.

The replacement slightly changes the icon silhouette.

Validation

• SVG XML parsing and upstream path comparison passed.
• License text, references, and distribution template consistency checks passed.
• git diff --check passed.
• Apache RAT 0.15 passed using a temporary standalone POM with equivalent exclusions.

[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