Default weather images: get rid of white borders.

1Weather/Resources/Assets.xcassets/default_weather_images/default_weather_partly_cloudy_night.imageset/Contents.json

 {
 {
   "images" : [
   "images" : [
     {
     {
-      "filename" : "aralTasherNjMi2OFoQqQUnsplashCopy.jpg",
+      "filename" : "MicrosoftTeams-image (5).png",
       "idiom" : "universal",
       "idiom" : "universal",
       "scale" : "1x"
       "scale" : "1x"
     },
     },
     {
     {
-      "filename" : "aralTasherNjMi2OFoQqQUnsplashCopy@2x.jpg",
+      "filename" : "MicrosoftTeams-image (6).png",
       "idiom" : "universal",
       "idiom" : "universal",
       "scale" : "2x"
       "scale" : "2x"
     },
     },
     {
     {
-      "filename" : "aralTasherNjMi2OFoQqQUnsplashCopy@3x.jpg",
+      "filename" : "MicrosoftTeams-image (7).png",
       "idiom" : "universal",
       "idiom" : "universal",
       "scale" : "3x"
       "scale" : "3x"
     }
     }