Remove unnecessary lodash.get dependency

In the one place we use it, this can be replaced with a trivial helper.

package.json

@@ -77,7 +77,6 @@
     "karma-sinon": "^1.0.5",
     "katex": "^0.11.0",
     "lodash.debounce": "^4.0.3",
-    "lodash.get": "^4.3.0",
     "loose-envify": "^1.4.0",
     "mocha": "^7.0.0",
     "node-uuid": "^1.4.3",

src/sidebar/services/api.js

-import get from 'lodash.get';
 import * as queryString from 'query-string';
 
 import { replaceURLParams } from '../util/url';
@@ -77,6 +76,14 @@ function stripInternalProperties(obj) {
 // istanbul ignore next
 const noop = () => null;
 
+function get(object, path) {
+  let cursor = object;
+  path.split('.').forEach(segment => {
+    cursor = cursor[segment];
+  });
+  return cursor;
+}
+
 /**
  * Creates a function that will make an API call to a named route.
  *

yarn.lock

@@ -5186,7 +5186,7 @@ lodash.flattendeep@^4.4.0:
   resolved "https://registry.yarnpkg.com/lodash.flattendeep/-/lodash.flattendeep-4.4.0.tgz#fb030917f86a3134e5bc9bec0d69e0013ddfedb2"
   integrity sha1-+wMJF/hqMTTlvJvsDWngAT3f7bI=
 
-lodash.get@^4.3.0, lodash.get@^4.4.2:
+lodash.get@^4.4.2:
   version "4.4.2"
   resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
   integrity sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=