bump to js 1.52 and codegen (#2047)

Author: emmanuelle

packages/javascript/plotlywidget/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "plotlywidget",
-  "version": "1.4.0",
+  "version": "1.4.0+52.g81f392272",
   "description": "The plotly JupyterLab extension",
   "author": "The plotly.py team",
   "license": "MIT",
@@ -35,7 +35,7 @@
     "typescript": "~3.1.1"
   },
   "dependencies": {
-    "plotly.js": "^1.51.2",
+    "plotly.js": "^1.52.0",
     "@jupyter-widgets/base": "^2.0.0",
     "lodash": "^4.17.4"
   },

packages/javascript/plotlywidget/package.json

@@ -2,4 +2,4 @@
 # for automated dev builds
 #
 # It is edited by hand prior to official releases
-__frontend_version__ = "^1.4.0"
+__frontend_version__ = "1.4.0+52.g81f392272"