fix: value for the range in Text shadow doesn't update

[Dhoni77]

Fixes

**My PR closes #537

👨‍💻 Changes proposed(What did you do ?)

• Added a default value for textarea
• Removed the empty color check
• Added default value for box and text shadow colors

✔️ Check List (Check all the applicable boxes)

• [x] My code follows the code style of this project.
• [x] This PR does not contain plagiarized content.
• [x] The title and description of the PR is clear and explains the approach.

Note to reviewers

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Name	Status	Preview	Comments	Updated (UTC)
code-magic	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 1, 2023 11:21am

[Dhoni77]

cc @Dun-sin

[Dhoni77]

cc @Dun-sin

[Dhoni77]

cc @Dun-sin

[Dun-sin]

:tada: This PR is included in version 2.75.3 :tada:

The release is available on GitHub release

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