Images: Update network cell icons

vlc-ios/Images.xcassets/CloudController/iCloudIcon.imageset/Contents.json

@@ -2,17 +2,17 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "iCloudIcon.png",
+      "filename" : "icnCloud.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "iCloudIcon@2x.png",
+      "filename" : "icnCloud@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "iCloudIcon@3x.png",
+      "filename" : "icnCloud@3x.png",
       "scale" : "3x"
     }
   ],

vlc-ios/Images.xcassets/DownloadController/Downloads.imageset/Contents.json

@@ -2,17 +2,17 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "Downloads.png",
+      "filename" : "icnDownload.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "Downloads@2x.png",
+      "filename" : "icnDownload@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "Downloads@3x.png",
+      "filename" : "icnDownload@3x.png",
       "scale" : "3x"
     }
   ],

vlc-ios/Images.xcassets/NetworkController/OpenNetStream.imageset/Contents.json

@@ -2,17 +2,17 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "OpenNetStream.png",
+      "filename" : "icnStreaming.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "OpenNetStream@2x.png",
+      "filename" : "icnStreaming@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "OpenNetStream@3x.png",
+      "filename" : "icnStreaming@3x.png",
       "scale" : "3x"
     }
   ],