Bump @material-ui/core from 4.5.2 to 4.8.0

Bumps [@material-ui/core](https://github.com/mui-org/material-ui/tree/HEAD/packages/material-ui) from 4.5.2 to 4.8.0.
- [Release notes](https://github.com/mui-org/material-ui/releases)
- [Changelog](https://github.com/mui-org/material-ui/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mui-org/material-ui/commits/v4.8.0/packages/material-ui)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

yarn.lock

@@ -923,22 +923,23 @@
     "@types/yargs" "^12.0.9"
 
 "@material-ui/core@^4.2.0":
-  version "4.5.2"
-  resolved "https://registry.yarnpkg.com/@material-ui/core/-/core-4.5.2.tgz#90a27655db527326876f4390a9d28d69de2ed639"
-  integrity sha512-yARw/hwavOXqljP+biDXHcmfbC63n8EkA8C10/tZt7KkBp7fs+7+z3BNR+ffotd8/uhirIC1jQWWKdLoUc34yA==
+  version "4.8.0"
+  resolved "https://registry.yarnpkg.com/@material-ui/core/-/core-4.8.0.tgz#8fb4f4df2b35e3e781b1eec17d4aaf388edf3099"
+  integrity sha512-ODyvWlDOP0D3tU32wVlYRNrdS+LeJxB3xJbXdDxq6gnG4JhKk79+ylP0cImjPBI2yEZw0hcYHWFZOGD+0R1X4g==
   dependencies:
     "@babel/runtime" "^7.4.4"
-    "@material-ui/styles" "^4.5.2"
-    "@material-ui/system" "^4.5.2"
+    "@material-ui/styles" "^4.7.1"
+    "@material-ui/system" "^4.7.1"
     "@material-ui/types" "^4.1.1"
-    "@material-ui/utils" "^4.5.2"
+    "@material-ui/utils" "^4.7.1"
     "@types/react-transition-group" "^4.2.0"
     clsx "^1.0.2"
     convert-css-length "^2.0.1"
     hoist-non-react-statics "^3.2.1"
     normalize-scroll-left "^0.2.0"
     popper.js "^1.14.1"
     prop-types "^15.7.2"
+    react-is "^16.8.0"
     react-transition-group "^4.3.0"
 
 "@material-ui/icons@^4.2.1":
@@ -948,15 +949,15 @@
   dependencies:
     "@babel/runtime" "^7.4.4"
 
-"@material-ui/styles@^4.5.2":
-  version "4.5.2"
-  resolved "https://registry.yarnpkg.com/@material-ui/styles/-/styles-4.5.2.tgz#95ac4641a3daed5ee9cc91af1e224d39efafbecb"
-  integrity sha512-QUqPk4tdPiDLs/1flB6qdAqUrYSxHv4YLCgvFeZw9A9OK/lf8LFjciF/SsSIDOCwoV2kf3BiGTzWUGjb/TTgzA==
+"@material-ui/styles@^4.7.1":
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/@material-ui/styles/-/styles-4.7.1.tgz#48fa70f06441c35e301a9c4b6c825526a97b7a29"
+  integrity sha512-BBfxVThaPrglqHmKtSdrZJxnbFGJqKdZ5ZvDarj3HsmkteGCXsP1ohrDi5TWoa5JEJFo9S6q6NywqsENZn9rZA==
   dependencies:
     "@babel/runtime" "^7.4.4"
     "@emotion/hash" "^0.7.1"
     "@material-ui/types" "^4.1.1"
-    "@material-ui/utils" "^4.5.2"
+    "@material-ui/utils" "^4.7.1"
     clsx "^1.0.2"
     csstype "^2.5.2"
     hoist-non-react-statics "^3.2.1"
@@ -970,13 +971,13 @@
     jss-plugin-vendor-prefixer "^10.0.0"
     prop-types "^15.7.2"
 
-"@material-ui/system@^4.5.2":
-  version "4.5.2"
-  resolved "https://registry.yarnpkg.com/@material-ui/system/-/system-4.5.2.tgz#7143bd8422a3f33f435c23f378136254004bbd60"
-  integrity sha512-h9RWvdM9XKlHHqwiuhyvWdobptQkHli+m2jJFs7i1AI/hmGsIc4reDmS7fInhETgt/Txx7uiAIznfRNIIVHmQw==
+"@material-ui/system@^4.7.1":
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/@material-ui/system/-/system-4.7.1.tgz#d928dacc0eeae6bea569ff3ee079f409efb3517d"
+  integrity sha512-zH02p+FOimXLSKOW/OT2laYkl9bB3dD1AvnZqsHYoseUaq0aVrpbl2BGjQi+vJ5lg8w73uYlt9zOWzb3+1UdMQ==
   dependencies:
     "@babel/runtime" "^7.4.4"
-    "@material-ui/utils" "^4.5.2"
+    "@material-ui/utils" "^4.7.1"
     prop-types "^15.7.2"
 
 "@material-ui/types@^4.1.1":
@@ -986,14 +987,14 @@
   dependencies:
     "@types/react" "*"
 
-"@material-ui/utils@^4.5.2":
-  version "4.5.2"
-  resolved "https://registry.yarnpkg.com/@material-ui/utils/-/utils-4.5.2.tgz#4c2fb531d357cf0da8cece53b588dff9b0bde934"
-  integrity sha512-zhbNfHd1gLa8At6RPDG7uMZubHxbY+LtM6IkSfeWi6Lo4Ax80l62YaN1QmUpO1IvGCkn/j62tQX3yObiQZrJsQ==
+"@material-ui/utils@^4.7.1":
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/@material-ui/utils/-/utils-4.7.1.tgz#dc16c7f0d2cd02fbcdd5cfe601fd6863ae3cc652"
+  integrity sha512-+ux0SlLdlehvzCk2zdQ3KiS3/ylWvuo/JwAGhvb8dFVvwR21K28z0PU9OQW2PGogrMEdvX3miEI5tGxTwwWiwQ==
   dependencies:
     "@babel/runtime" "^7.4.4"
     prop-types "^15.7.2"
-    react-is "^16.8.6"
+    react-is "^16.8.0"
 
 "@samverschueren/stream-to-observable@^0.3.0":
   version "0.3.0"
@@ -5918,10 +5919,10 @@ react-dom@^16.8.6:
     prop-types "^15.6.2"
     scheduler "^0.17.0"
 
-react-is@^16.7.0, react-is@^16.8.1, react-is@^16.8.4, react-is@^16.8.6:
-  version "16.8.6"
-  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.8.6.tgz#5bbc1e2d29141c9fbdfed456343fe2bc430a6a16"
-  integrity sha512-aUk3bHfZ2bRSVFFbbeVS4i+lNPZr3/WM5jT2J5omUVV1zzcs1nAaf3l51ctA5FFvCRbhrH0bdAsRRQddFJZPtA==
+react-is@^16.7.0, react-is@^16.8.0, react-is@^16.8.1, react-is@^16.8.4:
+  version "16.12.0"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.12.0.tgz#2cc0fe0fba742d97fd527c42a13bec4eeb06241c"
+  integrity sha512-rPCkf/mWBtKc97aLL9/txD8DZdemK0vkA3JMLShjlJB3Pj3s+lpf1KaBzMfQrAmhMQB0n1cU/SUGgKKBCe837Q==
 
 react-jsonschema-form@^1.6.1:
   version "1.8.0"