fix: #8042 updated divider widget height width and default color

[vibhandikyash]

Description

Added cosmetic effects for Divider.

Fixes #8042

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Tested Locally.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Test coverage results 🧪

⚪ Total coverage has not changed

No changes to code coverage between the base branch and the head branch

[somangshu]

Code looks fine, But visually the divider is least visible on the canvas

@momcilo-appsmith kindly check this out

@vivekverma2312 you will have to verify the rest of the changes, and also check if anything is missed here

[shwetha-ramesh]

@vibhandikyash tested this PR with reference to the attached document :
issue 1 : hover state is not highlighting the widget in 'blue'
issue 2 : clicking on the widget does not change the color to 'blue'

https://loom.com/share/80fdecc9865c4d71af6e30b0d20b54ee

[vibhandikyash]

@shwetha-ramesh @YogeshJayaseelan It's a feature of Figma and not a hover action.