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/HowYouCanHelp/howYouCanHelp.module.scss

@@ -0,0 +1,24 @@
+@import "../utils.scss";
+
+.howYouCanHelpContainer {
+  margin: 2rem 0;
+
+  .howYouCanHelpText {
+    color: $headingFontColor;
+    padding-left: 1rem;
+  }
+}
+
+.howYouCanHelpHeader {
+  color: $headingFontColor;
+  font-weight: normal;
+}
+
+.howYouCanHelpList {
+  list-style-type: disc;
+  padding-bottom: 1rem;
+}
+
+.howYouCanHelpListWrapper {
+  padding-left: 2rem;
+}