Added the 'Dynamic_Testimonial' feature

[SurajPratap10]

What is the change?

• I have added a new component namely: (Dynamic_Testimonial) under the Testimonials folder.

Related issue?

closes: #376

How was it tested?

Remove this line and tell us how the code was tested.

Checklist:

Before you create this PR, confirm all the requirements listed below by checking the checkboxes [x]:

• [x] Have you followed the Contribution Guidelineswhile contributing.
• [x] Have you checked there aren't other open Pull Requests for the same update/change?
• [x] Have you made corresponding changes to the documentation?
• [x] Have you tested the code before submission?
• [x] Have you formatted your code ? (You can use any html,css beautifier)
• [x] My changes generates no new warnings.
• [x] I'm Diversion2k23 contributor.
• [x] I have commented my code, particularly in hard-to-understand areas.

GIF/video of the working of component you created:

Add here the GIF you created.

https://user-images.githubusercontent.com/92919173/218243816-cb9899c3-aa2a-4c20-8ba2-6f4509f1b10a.mp4

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