Public Engagement Page (#1372)

* Add public engagement page

- modifies sitemap config
- creates PublicEvent component
- adds SVGs for dates
- all copy is in intl

* Add Public Engagement button to each page

- create new PublicEng component
- add to each page
- update snapshots
- modify CEJST and Meth page to give button more space

* Make mobile compliant and fix DOM validation error

- transform each <p>'s descendent into a <CollectionDescription>
- fix a mobile rendering issue with <Collection> library
- format registration links so they render on mobile
- update snapshots

* Add spacing to descriptions and fix links

* Add Gherkin tests for testing links

- all zoom links should be functional
- ensure all legacy tests, test the new page
- add data-cy tag for cypress
- update snapshots

* Refactor to pass accessibility on all pages

- update snapshots

* Correct registration links

* Make registration links into buttons

* Make new tag bold

* Update copy based on feedback from Corey

client/src/components/PublicEngageButton/PublicEngageButton.module.scss

@@ -0,0 +1,22 @@
+@use '../../styles/design-system.scss' as *;
+
+.tagContainer {
+    @include u-margin-bottom(1);
+    @include u-margin-right(1);
+    .tag {
+        @include u-bg("yellow-20v");
+        color: black;
+        border-radius: 5px;
+        @include u-text('bold');
+    }
+}
+
+.container {
+    @include u-padding-top(2.5);
+
+    .link, .link:visited {
+        color:white;
+        text-decoration: none;
+    }
+
+}