Text Casing icons
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## Icon Request

* Icon name: TextCaseUppercase, TextCaseLowecase, TextCaseCapitalize, TextCaseToggle
* Tags of this icon: Editor
* Use case: Show text casing in an editor environment
* Screenshots of similar icons:

<img width="451" alt="Image" src="https://github.com/user-attachments/assets/bab117be-b4f9-4311-92eb-ec3370d3ad6a" />
