Upgraded Typescript to 3.6.3

.eslintrc

@@ -21,6 +21,7 @@
       "version":  "detect"
     }
   },
+  "parser": "@typescript-eslint/parser",
   "parserOptions": {
     "ecmaFeatures": {
       "jsx": true

.vscode/settings.json

@@ -5,5 +5,6 @@
 		"javascriptreact",
 		"typescript",
 		"typescriptreact"
-	]
+	],
+	"typescript.tsdk": "node_modules/typescript/lib"
 }

package.json

@@ -27,6 +27,7 @@
     "@types/react-dom": "16.9.0",
     "@types/react-router-dom": "4.3.5",
     "@types/validator": "10.11.3",
+    "@typescript-eslint/parser": "2.3.2",
     "@verdaccio/babel-preset": "2.0.0",
     "@verdaccio/eslint-config": "2.0.0",
     "@verdaccio/types": "8.1.0",
@@ -37,14 +38,14 @@
     "codecov": "3.6.1",
     "concurrently": "4.1.2",
     "cross-env": "6.0.0",
-    "detect-secrets": "1.0.4",
     "css-loader": "3.2.0",
     "date-fns": "1.30.1",
+    "detect-secrets": "1.0.4",
     "emotion": "9.2.12",
     "enzyme": "3.10.0",
     "enzyme-adapter-react-16": "1.14.0",
     "enzyme-to-json": "3.4.0",
-    "eslint": "5.16.0",
+    "eslint": "6.5.1",
     "eslint-plugin-codeceptjs": "1.1.0",
     "eslint-plugin-jsx-a11y": "6.2.3",
     "eslint-plugin-prettier": "3.1.0",
@@ -68,8 +69,8 @@
     "js-base64": "2.5.1",
     "js-yaml": "3.13.1",
     "lint-staged": "8.2.1",
-    "lockfile-lint": "2.0.1",
     "localstorage-memory": "1.0.3",
+    "lockfile-lint": "2.0.1",
     "mini-css-extract-plugin": "0.8.0",
     "node-mocks-http": "1.8.0",
     "normalize.css": "8.0.1",
@@ -97,7 +98,7 @@
     "stylelint-webpack-plugin": "0.10.5",
     "supertest": "4.0.2",
     "typeface-roboto": "0.0.75",
-    "typescript": "3.5.3",
+    "typescript": "3.6.3",
     "uglifyjs-webpack-plugin": "2.2.0",
     "url-loader": "2.1.0",
     "validator": "11.1.0",

src/components/NotFound/NotFound.tsx

@@ -1,18 +1,17 @@
 import ListItem from '@material-ui/core/ListItem';
 import Typography from '@material-ui/core/Typography';
-import withWidth, { isWidthUp } from '@material-ui/core/withWidth';
+import withWidth, { isWidthUp, WithWidthProps } from '@material-ui/core/withWidth';
 import React, { useCallback } from 'react';
 import { RouteComponentProps, withRouter } from 'react-router-dom';
 
 import PackageImg from './img/package.svg';
 import { Card, EmptyPackage, Heading, Inner, List, Wrapper } from './styles';
-import { Breakpoint } from '@material-ui/core/styles/createBreakpoints';
 
 export const NOT_FOUND_TEXT = `Sorry, we couldn't find it...`;
 export const LABEL_NOT_FOUND = `The page you're looking for doesn't exist.`;
 export const LABEL_FOOTER_NOT_FOUND = 'Perhaps these links will help find what you are looking for:';
 
-export type NotFoundProps = RouteComponentProps & { width: Breakpoint; history };
+export type NotFoundProps = RouteComponentProps & WithWidthProps;
 
 const HOME_LABEL = 'Home';
 
@@ -36,11 +35,12 @@ const NotFound: React.FC<NotFoundProps> = ({ history, width }) => {
     </List>
   );
 
+  /* eslint-disable @typescript-eslint/no-non-null-assertion */
   return (
     <Wrapper data-testid="404">
       <Inner>
         <EmptyPackage alt="404 - Page not found" src={PackageImg} />
-        <Heading className="not-found-text" variant={isWidthUp('sm', width) ? 'h2' : 'h4'}>
+        <Heading className="not-found-text" variant={isWidthUp('sm', width!) ? 'h2' : 'h4'}>
           {NOT_FOUND_TEXT}
         </Heading>
         {renderSubTitle()}
@@ -50,4 +50,4 @@ const NotFound: React.FC<NotFoundProps> = ({ history, width }) => {
   );
 };
 
-export default withRouter(withWidth()(NotFound));
+export default withRouter<NotFoundProps, React.ComponentType<NotFoundProps>>(withWidth()(NotFound));

src/components/Search/Search.tsx

@@ -17,10 +17,6 @@ export interface State {
   loaded: boolean;
   error: boolean;
 }
-interface AbortControllerInterface {
-  signal: () => void;
-  abort: () => void;
-}
 
 export type cancelAllSearchRequests = () => void;
 export type handlePackagesClearRequested = () => void;
@@ -169,7 +165,7 @@ export class Search extends Component<RouteComponentProps<{}>, State> {
     }
   };
 
-  private requestList: AbortControllerInterface[];
+  private requestList: AbortController[];
 
   public getAdorment(): JSX.Element {
     return (