`customUIColors.schema.json` untrusted warning

After the fix in #633, the schema URL was changed to `raw.githubusercontent.com`, which is supposed to be trusted by default in VS Code. However, I'm still seeing the following warning in my **default profile's** `settings.json`:

```
Unable to load schema from 'https://raw.githubusercontent.com/catppuccin/vscode/catppuccin-vsc-v3.19.0/packages/catppuccin-vsc/schemas/customUIColors.schema.json': Location https://raw.githubusercontent.com/catppuccin/vscode/catppuccin-vsc-v3.19.0/packages/catppuccin-vsc/schemas/customUIColors.schema.json is untrusted.
```

The warning appears both in an empty window and in a trusted workspace. The warning does **not** appear in other profiles — only in the default one.

**Environment:**
- Extension version: 3.19.0
- VS Code version: 1.124.2
- OS: Windows 11