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/layout/page/PageContainer.tsx

@@ -0,0 +1,15 @@
+import styled from '@emotion/styled';
+
+type PageContainerProps = {
+  children: JSX.Element | JSX.Element[];
+};
+
+const StyledContainer = styled.div`
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+`;
+
+export const PageContainer = ({ children }: PageContainerProps) => (
+  <StyledContainer>{children}</StyledContainer>
+);