Show manga description only if available

src/components/manga/MangaDetails.tsx

@@ -183,10 +183,13 @@ const DescriptionGenre = ({
 }) => {
     const [isCollapsed, setIsCollapsed] = useLocalStorage('isDescriptionGenreCollapsed', true);
 
+    const collapsedSize = description ? DESCRIPTION_COLLAPSED_SIZE : 0;
+
     return (
         <>
+            {description && (
                 <Stack sx={{ position: 'relative' }}>
-                <Collapse collapsedSize={DESCRIPTION_COLLAPSED_SIZE} in={!isCollapsed}>
+                    <Collapse collapsedSize={collapsedSize} in={!isCollapsed}>
                         <Typography style={{ whiteSpace: 'pre-line', textAlign: 'justify', textJustify: 'inter-word' }}>
                             {description}
                         </Typography>
@@ -200,7 +203,8 @@ const DescriptionGenre = ({
                             position: isCollapsed ? 'absolute' : null,
                             width: '100%',
                             bottom: 0,
-                        background: (theme) => `linear-gradient(transparent 1px, ${theme.palette.background.default})`,
+                            background: (theme) =>
+                                `linear-gradient(transparent 1px, ${theme.palette.background.default})`,
                         }}
                     >
                         <IconButton sx={{ color: (theme) => (theme.palette.mode === 'light' ? 'black' : 'text') }}>
@@ -208,6 +212,7 @@ const DescriptionGenre = ({
                         </IconButton>
                     </Stack>
                 </Stack>
+            )}
             <Stack
                 sx={{
                     flexDirection: 'row',