PLT-4404 Replace calls to onInput with onChange to better support IE11 (#4315)

* Replace calls to onInput with onChange to better support IE11

* Replaced react-textarea-autosize with react-autosize-textarea

webapp/package.json

@@ -24,13 +24,13 @@
     "perfect-scrollbar": "0.6.12",
     "react": "15.3.2",
     "react-addons-pure-render-mixin": "15.3.2",
+    "react-autosize-textarea": "0.3.3",
     "react-bootstrap": "0.30.3",
     "react-custom-scrollbars": "4.0.0",
     "react-dom": "15.3.2",
     "react-intl": "2.1.5",
     "react-router": "2.8.1",
     "react-select": "1.0.0-rc.2",
-    "react-textarea-autosize": "4.0.5",
     "superagent": "2.3.0",
     "twemoji": "2.2.0",
     "velocity-animate": "1.2.3",