added missing package "react-sticky-el"

package.json

@@ -48,6 +48,7 @@
         "react-router-redux": "next",
         "react-scale-text": "^1.2.2",
         "react-select": "2.0.0",
+        "react-sticky-el": "^1.0.20",
         "react-transition-group": "^2.2.1",
         "redbox-react": "^1.6.0",
         "redux": "4.0.0",

yarn.lock

@@ -8135,18 +8135,18 @@ prop-types@15.x, prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.8, pr
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
-prop-types@^15.6.1:
-  version "15.6.1"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.1.tgz#36644453564255ddda391191fb3a125cbdf654ca"
+prop-types@>=15.5.10, prop-types@^15.6.2:
+  version "15.6.2"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
   dependencies:
-    fbjs "^0.8.16"
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
-prop-types@^15.6.2:
-  version "15.6.2"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
+prop-types@^15.6.1:
+  version "15.6.1"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.1.tgz#36644453564255ddda391191fb3a125cbdf654ca"
   dependencies:
+    fbjs "^0.8.16"
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
@@ -8482,6 +8482,12 @@ react-select@2.0.0:
     react-input-autosize "^2.2.1"
     react-transition-group "^2.2.1"
 
+react-sticky-el@^1.0.20:
+  version "1.0.20"
+  resolved "https://registry.yarnpkg.com/react-sticky-el/-/react-sticky-el-1.0.20.tgz#b3c5e7128218633f440dc67aec239d1cd078342d"
+  dependencies:
+    prop-types ">=15.5.10"
+
 react-transition-group@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-2.2.1.tgz#e9fb677b79e6455fd391b03823afe84849df4a10"