Update share icon + new icon dimension

Signed-off-by: Philippe Weidmann <philippe.weidmann@infomaniak.com>

iOSClient/Images.xcassets/tabBarFavorites.imageset/Contents.json

@@ -1,17 +1,8 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "star.pdf",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
+      "filename" : "tabBarFavorites.pdf",
+      "idiom" : "universal"
     }
   ],
   "info" : {

iOSClient/Images.xcassets/tabBarFiles.imageset/Contents.json

@@ -1,17 +1,8 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "folder.pdf",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
+      "filename" : "tabBarFiles.pdf",
+      "idiom" : "universal"
     }
   ],
   "info" : {

iOSClient/Images.xcassets/tabBarMedia.imageset/Contents.json

@@ -1,17 +1,8 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "media.pdf",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
+      "filename" : "tabBarMedia.pdf",
+      "idiom" : "universal"
     }
   ],
   "info" : {

iOSClient/Images.xcassets/tabBarMore.imageset/Contents.json

@@ -1,17 +1,8 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "more.pdf",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
+      "filename" : "tabBarMore.pdf",
+      "idiom" : "universal"
     }
   ],
   "info" : {