Modifies ExploreTool page to match sprint 4 design (#481)

* initial commit of sprint 4 explore page

* adds styling on HowYouCanHelp module

* troubleshooting li element on deployed URL

removing local bullet styles

* removing unused styles

* recreating HowYouCanHelp

* explicit list el styles

* adds bullets back in

* fixes tooltip style and alert padding

* componentize MapLegend

* fix links

* inital intl and unit tests

* adds trusswork tooltip for comparison

* updates based on various feedback and disucssions:

- removes react-tooltip
- placeholder trussworks tooltip
- removes download packet component
- intl on HowYouCanHelp
- updates MapLegend tests
- add initial cy test on ExploreTool page

* removes bold on alert

* PR feedback:

- removes location from J40Alert
- localizes `COLOR KEY`

* adds intl to constants file

* modifies download zip URL to new S3 location

* removes location depedencies on Alerts

* add localization for HowYouCanHelp

client/src/components/layout.tsx

@@ -12,7 +12,7 @@ const Layout = ({children, location}: ILayoutProps) => {
   // @ts-ignore
   return (
     <URLFlagProvider location={location}>
-      <J40Header location={location}/>
+      <J40Header />
       <main id={'main-content'}>
         {children}
       </main>