Icon refactoring (#287)

* Refactor icons

* Fix additional icons

front/src/modules/ui/layout/top-bar/TopBar.tsx

@@ -1,7 +1,8 @@
 import { ReactNode } from 'react';
-import { TbPlus } from 'react-icons/tb';
 import styled from '@emotion/styled';
 
+import { IconPlus } from '@/ui/icons/index';
+
 import NavCollapseButton from '../navbar/NavCollapseButton';
 
 export const TOP_BAR_MIN_HEIGHT = '40px';
@@ -59,7 +60,7 @@ export function TopBar({ title, icon, onAddButtonClick }: OwnProps) {
             data-testid="add-button"
             onClick={onAddButtonClick}
           >
-            <TbPlus size={16} />
+            <IconPlus size={16} />
           </AddButtonContainer>
         )}
       </TopBarContainer>