Fix sizing of the leftnav new post btn (#2248)

src/view/shell/desktop/LeftNav.tsx

@@ -239,9 +239,10 @@ function ComposeBtn() {
     return null
   }
   return (
+    <View style={styles.newPostBtnContainer}>
       <TouchableOpacity
         disabled={isFetchingHandle}
-      style={[styles.newPostBtn]}
+        style={styles.newPostBtn}
         onPress={onPressCompose}
         accessibilityRole="button"
         accessibilityLabel={_(msg`New post`)}
@@ -257,6 +258,7 @@ function ComposeBtn() {
           <Trans>New Post</Trans>
         </Text>
       </TouchableOpacity>
+    </View>
   )
 }
 
@@ -512,6 +514,9 @@ const styles = StyleSheet.create({
     fontSize: 14,
   },
 
+  newPostBtnContainer: {
+    flexDirection: 'row',
+  },
   newPostBtn: {
     flexDirection: 'row',
     alignItems: 'center',