Update MVC Lesson

[wvmitchell]

Lesson to be updated: MVC Architecture

Summary of changes needed:

• The current lesson uses a class based component to describe the MVC pattern
• This example needs to be updated to be a functional component
• Any language in the lesson that is referring to that class based component may also need to be updated
• The lesson should include a link to the MVC pattern architecture page on MDN

Lesson creation guidelines (also on FE Hub)

• Lesson Preparation Foundations
• 4 Pillars of Remote Instruction
• Instructional Values
• Culturally Responsive Teaching

[sertmer]

Link to PR