feat: new not found component (#170)

* refactor: updated not found component

* chore: removed react-router

* refactored: applied feedbacks

* fix: removed doc folder

* refactor: rollback yarn.lock

src/components/NotFound/styles.ts

@@ -1,41 +0,0 @@
-import { default as MuiCard } from '@material-ui/core/Card';
-import { default as MuiList } from '@material-ui/core/List';
-import Typography from '@material-ui/core/Typography';
-import styled from 'react-emotion';
-
-export const Wrapper = styled('div')({
-  display: 'flex',
-  alignItems: 'center',
-  flexDirection: 'column',
-  justifyContent: 'center',
-  flex: 1,
-  padding: '16px',
-});
-
-export const Inner = styled('div')({
-  maxWidth: '650px',
-  display: 'flex',
-  flexDirection: 'column',
-});
-
-export const EmptyPackage = styled('img')({
-  width: '150px',
-  margin: '0 auto',
-});
-
-export const Heading = styled(Typography)({
-  '&&': {
-    color: '#4b5e40',
-  },
-});
-
-export const List = styled(MuiList)({
-  '&&': {
-    padding: 0,
-    color: '#4b5e40',
-  },
-});
-
-export const Card = styled(MuiCard)({
-  marginTop: '24px',
-});