Uniformize folder structure (#693)

* Uniformize folder structure

* Fix icons

* Fix icons

* Fix tests

* Fix tests

front/src/modules/ui/layout/components/Panel.tsx

@@ -0,0 +1,17 @@
+import React from 'react';
+import styled from '@emotion/styled';
+
+const StyledPanel = styled.div`
+  background: ${({ theme }) => theme.background.primary};
+  border: 1px solid ${({ theme }) => theme.border.color.light};
+  border-radius: ${({ theme }) => theme.border.radius.md};
+  display: flex;
+  flex-direction: row;
+  height: 100%;
+  overflow: auto;
+  width: 100%;
+`;
+
+export function Panel({ children }: { children: React.ReactNode }) {
+  return <StyledPanel>{children}</StyledPanel>;
+}