Added test cases for StylesContext

[Suvrat1629]

Description

Please include a brief summary of the change and include the relevant issue(s).

Closes #232

What change does this PR introduce?

I have added a StylesContext.test.tsx file which contains test code for StylesContext.

Please select the relevant option(s).

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (changes to docs/code comments)

What is the proposed approach?

Please give a short overview/explanation on the approach taken to resolve the issue(s).

Checklist:

• The commit message follows our adopted guidelines
• Testing has been done for the change(s) added (for bug fixes/features)
• Relevant comments/docs have been added/updated (for bug fixes/features)

[tjtanjin]

Hey @Suvrat1629, thank you for the PR. I've left a couple of comments to be addressed. Let me know if you need any clarifications 😊

[Suvrat1629]

I have made the changes as you told me please tell me if you need me to make anymore changes

[tjtanjin]

I have made the changes as you told me please tell me if you need me to make anymore changes

Hey @Suvrat1629, there're still outstanding comments unresolved 😅

[Suvrat1629]

Oh sorry about that

[Suvrat1629]

Ok I have resolved the comments please take a look

[Suvrat1629]

@tjtanjin updates?

[tjtanjin]

LGTM!