Editor Font Size Settings Implementation

[CopeFiend]

Issue: #910
Pull Request: #911

Summary

This is to discuss the implementation of Editor font size settings.

Goals

• Add a SettingsWindow option to configure Editor font size.
• Group Text widgets into categories (World Viewer, Asset Browser, Inspector, etc.).
• Allow updating Text widgets by category so each area can have an independent font size.

Implementation

• The plan is to split changes from feature branch into multiple smaller branches and make a PR for each, check Add editor font size settings #911 for details.

Looking for suggestions and/or feedback, thanks.