Update chart.js

Get rid of custom moment dependency resolutions as chart.js stopped
having a fixed moment version in its dependencies: see
chartjs/Chart.js#4891.

package.json

@@ -13,7 +13,7 @@
     "heroku-postbuild": "yarn install --production=false && yarn build"
   },
   "dependencies": {
-    "chart.js": "^2.7.1",
+    "chart.js": "^2.7.2",
     "compression": "^1.7.1",
     "cross-env": "^5.1.3",
     "express": "^4.16.2",
@@ -40,9 +40,6 @@
     "react-table": "^6.7.5",
     "underscore.string": "^3.3.4"
   },
-  "resolutions": {
-    "chart.js/moment": "^2.19.4"
-  },
   "devDependencies": {
     "babel-eslint": "^8.0.3",
     "babel-plugin-dotenv-import": "^1.3.1",

yarn.lock

@@ -1485,20 +1485,20 @@ chalk@^2.1.0:
     escape-string-regexp "^1.0.5"
     supports-color "^4.0.0"
 
-chart.js@^2.7.1:
-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/chart.js/-/chart.js-2.7.1.tgz#ae90b4aa4ff1f02decd6b1a2a8dabfd73c9f9886"
+chart.js@^2.7.2:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/chart.js/-/chart.js-2.7.2.tgz#3c9fde4dc5b95608211bdefeda7e5d33dffa5714"
   dependencies:
-    chartjs-color "~2.2.0"
-    moment "~2.18.0"
+    chartjs-color "^2.1.0"
+    moment "^2.10.2"
 
 chartjs-color-string@^0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/chartjs-color-string/-/chartjs-color-string-0.5.0.tgz#8d3752d8581d86687c35bfe2cb80ac5213ceb8c1"
   dependencies:
     color-name "^1.0.0"
 
-chartjs-color@~2.2.0:
+chartjs-color@^2.1.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/chartjs-color/-/chartjs-color-2.2.0.tgz#84a2fb755787ed85c39dd6dd8c7b1d88429baeae"
   dependencies:
@@ -4703,14 +4703,14 @@ mock-local-storage@^1.0.5:
     core-js "^0.8.3"
     global "^4.3.2"
 
+moment@^2.10.2, moment@^2.19.4:
+  version "2.19.4"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.19.4.tgz#17e5e2c6ead8819c8ecfad83a0acccb312e94682"
+
 moment@^2.11.2:
   version "2.18.1"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.18.1.tgz#c36193dd3ce1c2eed2adb7c802dbbc77a81b1c0f"
 
-moment@^2.19.4, moment@~2.18.0:
-  version "2.19.4"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.19.4.tgz#17e5e2c6ead8819c8ecfad83a0acccb312e94682"
-
 move-concurrently@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"