Changes to documentation (#2209)

* 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

* doc changes

* fixed broken links

* doc addition and changes

* introduce user guide & graphql api

docs/docusaurus.config.js

@@ -73,8 +73,8 @@ const config = {
             position: "left",
           },
           {
-            to: "/graphql/",
-            label: "GraphQL Playground",
+            to: "/user-guide",
+            label: "User Guide",
             position: "right",
           },
           {