Update 'px' values to 'rem' in the molecules folder

src/components/molecules/CalendarGroup/index.tsx

src/components/molecules/CategoryHeader/index.tsx

src/components/molecules/CategoryHeader/style.module.scss

src/components/molecules/CurrentDirectoryRow/index.tsx

src/components/molecules/FoldersRow/index.tsx

src/components/molecules/PageButtonGroup/index.tsx

src/components/molecules/QuickAccessRow/index.tsx

src/components/molecules/QuickAccessRow/style.module.scss

src/components/molecules/SearchBox/index.tsx

src/components/molecules/SearchBox/style.module.scss

...olecules/SelectionView/components/SectionHeader/index.tsx

.../SelectionView/components/SectionHeader/style.module.scss

src/components/molecules/SelectionView/index.tsx

src/components/molecules/SideBarCardGroup/index.tsx

src/components/molecules/SideBarCardGroup/style.module.scss

src/components/molecules/SideBarTabGroup/index.tsx

src/components/molecules/SideBarTabGroup/style.module.scss

src/components/molecules/TutorCardGroup/index.tsx

src/components/molecules/TutorCardGroup/style.module.scss

src/components/molecules/WorkDueGroup/index.tsx