Refactor UI folder (#2016)

* Added Overview page

* Revised Getting Started page

* Minor revision

* Edited readme, minor modifications to docs

* Removed sweep.yaml, .devcontainer, .ergomake

* Moved security.md to .github, added contributing.md

* changes as per code review

* updated contributing.md

* fixed broken links & added missing links in doc, improved structure

* fixed link in wsl setup

* fixed server link, added https cloning in yarn-setup

* removed package-lock.json

* added doc card, admonitions

* removed underline from nav buttons

* refactoring modules/ui

* refactoring modules/ui

* Change folder case

* Fix theme location

* Fix case 2

* Fix storybook

---------

Co-authored-by: Nimra Ahmed <nimra1408@gmail.com>
Co-authored-by: Nimra Ahmed <50912134+nimraahmed@users.noreply.github.com>

front/src/modules/ui/display/checkmark/components/Checkmark.tsx

@@ -0,0 +1,27 @@
+import React from 'react';
+import { useTheme } from '@emotion/react';
+import styled from '@emotion/styled';
+
+import { IconCheck } from '@/ui/display/icon';
+
+const StyledContainer = styled.div`
+  align-items: center;
+  background-color: ${({ theme }) => theme.color.blue};
+  border-radius: 50%;
+  display: flex;
+  height: 20px;
+  justify-content: center;
+  width: 20px;
+`;
+
+export type CheckmarkProps = React.ComponentPropsWithoutRef<'div'>;
+
+export const Checkmark = (_props: CheckmarkProps) => {
+  const theme = useTheme();
+
+  return (
+    <StyledContainer>
+      <IconCheck color={theme.grayScale.gray0} size={14} />
+    </StyledContainer>
+  );
+};