refactor: move layout.tsx to web/display

https://metaforecast.org/layout is not a real page, so it shouldn't be
in src/pages.

src/pages/about.tsx

@@ -2,7 +2,7 @@ import React from 'react';
 import ReactMarkdown from 'react-markdown';
 import gfm from 'remark-gfm';
 
-import Layout from './layout';
+import Layout from '../web/display/layout';
 
 let readmeMarkdownText = `# About
 

src/pages/capture.tsx

@@ -2,9 +2,9 @@ import { NextPage } from 'next';
 import React from 'react';
 
 import { displayForecastsWrapperForCapture } from '../web/display/displayForecastsWrappers';
+import Layout from '../web/display/layout';
 import { Props } from '../web/search/anySearchPage';
 import CommonDisplay from '../web/search/CommonDisplay';
-import Layout from './layout';
 
 export { getServerSideProps } from "../web/search/anySearchPage";
 

src/pages/dashboards.tsx

@@ -6,8 +6,8 @@ import { useState } from 'react';
 
 import { DashboardCreator } from '../web/display/dashboardCreator';
 import displayForecasts from '../web/display/displayForecasts';
+import Layout from '../web/display/layout';
 import { getDashboardForecastsByDashboardId } from '../web/worker/getDashboardForecasts';
-import Layout from './layout';
 
 /* get Props */
 

src/pages/index.tsx

@@ -2,9 +2,9 @@ import { NextPage } from 'next';
 import React from 'react';
 
 import { displayForecastsWrapperForSearch } from '../web/display/displayForecastsWrappers';
+import Layout from '../web/display/layout';
 import { Props } from '../web/search/anySearchPage';
 import CommonDisplay from '../web/search/CommonDisplay';
-import Layout from './layout';
 
 export { getServerSideProps } from "../web/search/anySearchPage";
 

src/pages/tools.tsx

@@ -1,7 +1,7 @@
 import Link from 'next/link';
 import React from 'react';
 
-import Layout from './layout';
+import Layout from '../web/display/layout';
 
 /* Display one tool */
 function displayTool({

src/web/display/layout.tsx

@@ -1,12 +1,11 @@
 import Head from 'next/head';
 import Link from 'next/link';
-import React from 'react';
+import React, { ErrorInfo } from 'react';
 
-// import { GiDiceEightFacesEight } from "react-icons/gi";
-import { Logo2 } from '../web/icons/index';
+import { Logo2 } from '../icons/index';
 
 /* Utilities */
-const classNameSelected = (isSelected) =>
+const classNameSelected = (isSelected: boolean) =>
   `no-underline py-4 px-2 ml-4 text-md font-medium cursor-pointer border-b-2 border-transparent ${
     isSelected
       ? "text-blue-700 border-blue-700"
@@ -27,16 +26,16 @@ let calculateLastUpdate = () => {
 
 // Error catcher
 class ErrorBoundary extends React.Component<
-  any,
+  {},
   { error: any; errorInfo: any }
 > {
   // https://reactjs.org/docs/error-boundaries.html
-  constructor(props) {
+  constructor(props: {}) {
     super(props);
     this.state = { error: null, errorInfo: null };
   }
 
-  componentDidCatch(error, errorInfo) {
+  componentDidCatch(error: Error, errorInfo: ErrorInfo) {
     // Catch errors in any components below and re-render with error message
     this.setState({
       error: error,