feat: Added Theme and migrate to emotion@10.x 🚀 (#286)

* chore: updated emotion dependency

* feat: introduced theme

* refactor: updated emotion styles

* fix: fixed emotion error

* fix: fixed tests

* chore: add missing types

Co-Authored-By: Thomas Klein <tmkn@users.noreply.github.com>

package.json

@@ -15,6 +15,8 @@
   "devDependencies": {
     "@commitlint/cli": "8.2.0",
     "@commitlint/config-conventional": "8.2.0",
+    "@emotion/core": "10.0.22",
+    "@emotion/styled": "10.0.23",
     "@material-ui/core": "4.6.1",
     "@material-ui/icons": "4.5.1",
     "@octokit/rest": "16.35.0",
@@ -47,7 +49,8 @@
     "css-loader": "3.2.0",
     "date-fns": "2.8.1",
     "detect-secrets": "1.0.5",
-    "emotion": "9.2.12",
+    "emotion": "10.0.23",
+    "emotion-theming": "10.0.19",
     "enzyme": "3.10.0",
     "enzyme-adapter-react-16": "1.15.1",
     "enzyme-to-json": "3.4.3",
@@ -90,7 +93,6 @@
     "react": "16.12.0",
     "react-autosuggest": "9.4.3",
     "react-dom": "16.12.0",
-    "react-emotion": "9.2.12",
     "react-hot-loader": "4.12.18",
     "react-router-dom": "5.1.2",
     "request": "2.88.0",
@@ -214,5 +216,6 @@
     "type": "opencollective",
     "url": "https://opencollective.com/verdaccio",
     "logo": "https://opencollective.com/verdaccio/logo.txt"
-  }
+  },
+  "dependencies": {}
 }