Search bar on top of components list.

## 🚀 Feature Request

### Problem
Amp documentation has a long list of components and they are arranged in alphabetical order with alphabetical headings which is really helpful, but, If someone wants to see for a component or check if what they are looking for exists or not, they need to scroll down to the bottom in the worst-case scenario.
The list of components will definitely increase with time. So, having a search bar will help.

### Solution
A search bar on top of the components list to help the user search through amp components.

### Alternatives
Ctrl+F is an alternative but a search bar would be really great.