add missing space before line break

nicegui/element.py

@@ -151,7 +151,7 @@ class Element(ABC, Visibility):
                 result[key.strip()] = value.strip()
         return result
 
-    def style(self, add: Optional[str] = None, *, remove: Optional[str] = None, replace: Optional[str] = None)\
+    def style(self, add: Optional[str] = None, *, remove: Optional[str] = None, replace: Optional[str] = None) \
             -> Self:
         """Apply, remove, or replace CSS style sheet definitions to modify the look of the element.