Updating client dependencies. Switching to yarn. (#6433)

* Updating client dependancies. Switching to using yarn.

* Updating React

* Moving pure components to using function syntax (performance gains with newer react version)

* Updating client dependancies.

* Ignore .yarninstall

* Enabling pre-lockfile because it's the entire point of using yarn.

* Removing old webpack config

* Moving to new prop-types

* Fixing ESLint Errors

* Updating jest snapshots.

* Cleaning up package.json

1 files changed, 8 insertions, 6 deletions

diff --git a/webapp/components/search_results_header.jsx b/webapp/components/search_results_header.jsx
index ca0a49012..fd2628013 100644
--- a/webapp/components/search_results_header.jsx
+++ b/webapp/components/search_results_header.jsx
@@ -7,6 +7,8 @@ import * as GlobalActions from 'actions/global_actions.jsx';
 
 import {FormattedMessage} from 'react-intl';
 
+import PropTypes from 'prop-types';
+
 import React from 'react';
 
 export default class SearchResultsHeader extends React.Component {
@@ -138,10 +140,10 @@ export default class SearchResultsHeader extends React.Component {
 }
 
 SearchResultsHeader.propTypes = {
-    isMentionSearch: React.PropTypes.bool,
-    toggleSize: React.PropTypes.func,
-    shrink: React.PropTypes.func,
-    isFlaggedPosts: React.PropTypes.bool,
-    isPinnedPosts: React.PropTypes.bool,
-    channelDisplayName: React.PropTypes.string.isRequired
+    isMentionSearch: PropTypes.bool,
+    toggleSize: PropTypes.func,
+    shrink: PropTypes.func,
+    isFlaggedPosts: PropTypes.bool,
+    isPinnedPosts: PropTypes.bool,
+    channelDisplayName: PropTypes.string.isRequired
 };