Weather: Fixed a bug that displayed the widget area using a different background color

It seems Google changed the widget and explicitly set a background
color, so this patch takes that into account and removes it.
Previously, the widget did not have a background, rather inheriting it
from the `body` element.

ep_weather_host/ep_weather_provider_google_script.h

@@ -417,6 +417,7 @@ function ep_weather_getData(imageBitmap, ch) {\n\
   //console.log(res);\n\
   document.body.style.backgroundColor='transparent';\n\
   document.body.style.backgroundColor='transparent';\n\
+  Array.from(document.getElementsByClassName(\"Ww4FFb\")).forEach((element) => {element.style.backgroundColor = \"transparent\";});\n\
   return res;\n\
 }\n\
 var ep_result;\n\