closed #111 - Make grid image picker for widget eyes and mouth

Shared/Assets.xcassets/custom_icon/rainbow-solid.imageset/Contents.json

@@ -0,0 +1,24 @@
+{
+  "images" : [
+    {
+      "filename" : "rainbow-solid.svg",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  },
+  "properties" : {
+    "template-rendering-intent" : "template"
+  }
+}

Shared/Assets.xcassets/custom_icon/rainbow-solid.imageset/rainbow-solid.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512"><!--! Font Awesome Pro 6.0.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license (Commercial License) Copyright 2022 Fonticons, Inc. --><path d="M312.3 32.09C137.6 36.22 0 183.3 0 358V464C0 472.8 7.164 480 16 480h32C56.84 480 64 472.8 64 464v-106.9c0-143.2 117.2-263.5 260.4-261.1C463.5 98.4 576 212.3 576 352v112c0 8.836 7.164 16 16 16h32c8.838 0 16-7.164 16-16V352C640 172.1 492.3 27.84 312.3 32.09zM313.5 224.2C244.8 227.6 192 286.9 192 355.7V464C192 472.8 199.2 480 208 480h32C248.8 480 256 472.8 256 464v-109.7c0-34.06 25.65-63.85 59.64-66.11C352.9 285.7 384 315.3 384 352v112c0 8.836 7.164 16 16 16h32c8.838 0 16-7.164 16-16V352C448 279.3 387 220.5 313.5 224.2zM313.2 128.1C191.4 131.7 96 234.9 96 356.8V464C96 472.8 103.2 480 112 480h32C152.8 480 160 472.8 160 464v-108.1c0-86.64 67.24-160.5 153.8-163.8C404.8 188.7 480 261.7 480 352v112c0 8.836 7.164 16 16 16h32c8.838 0 16-7.164 16-16V352C544 226.2 439.8 124.3 313.2 128.1z"/></svg>