Doc changes (#2106)

* refactored Storybook UI

* refactored Storybook UI

* removed extra cards from the doc, added card for ui components

* added hover behavior to doc page & made it look selected

* separate storybook docs and tests

* separating storybook tests and docs

* fixed spelling errors in docs

* Final round of edits for frontend, added backend folder architecture

* Created CODE_OF_CONDUCT.md

* Add code of conduct to contributing.md

docs/docs/index.mdx

@@ -1,7 +1,6 @@
 ---
 id: homepage
 sidebar_position: 0
-
 sidebar_class_name: display-none
 title: Welcome
 custom_edit_url: null
@@ -32,7 +31,7 @@ See our [Getting Started](./start/getting-started/) guide to learn more.
 
 ## Contributing
 Contributions are what makes the open source community such an amazing place.  
-Code contributions through pull request are most welcome.
+Code contributions through pull requests are most welcome.
 But it doesn't have to be code. You can also create an issue to report a bug you've spotted, join discussions or write documentation.