[Bug] : Passing Build Context

[Abhigyan103]

Describe the bug
Passing the BuildContext in the controllers results in the warning of Passing BuildContext to providers indicates mixing UI with the business logic.

To Reproduce
Steps to reproduce the behavior:

1. Go to the Project Folder
2. Open it using VS Code
3. Scroll down in Problems
4. See the warning

Expected behavior
The code should be refactored such the that the BuildContext does not have to be passed in the Controllers