Frontend: Single Profile Page with Dynamic URL

[umutdenizsenerr]

This PR adds the ability for users to view the profile page of the author of a post by clicking on the profile icon on the single post page.

• A dynamic route was created for the single post page, which includes a parameter for the unique identifier of the post.
• The profile icon for the author of the post was displayed on the single post page.
• The react-router-dom library was used to navigate to the profile page for the author when the profile icon was clicked. The route for the profile page is also dynamic and includes a parameter for the unique identifier of the author.
• The necessary data for the author was retrieved from the database using the unique identifier passed in the route, and the profile information for the author was displayed on the profile page.

[BeratDamar]

Dear @umutdenizsenerr ,

There are conflicts that must be resolved and You should resolve conflicts. After that, I will review your implementation before merging.

I am waiting to hear from you.

[BeratDamar]

I reviewed your implementation. You user react-router-dom library in good way for our system. I will use this solution for search functionality. Now, users can view profile of the post author by clicking them user icon. Thanks to this feature, doctors and reguler users can get information about author before posting a comment.

As I mentioned in PR #514 , there was no interaction between rofile page and timeline. With this version, we resolved this problem. Thanks for considering my feedback.

Everthing seems okey now. I will merge it.