Gherkin workflows for desktop (#788)

* Add gherkin tests for page navigation links

- test that every page will load when navigating from any other page
- update snapshots

* Add gherkin workflows 2 - 5

- add test for Federal program officer key information and CTA
- add test for Community members key information and CTA
- add test for Send feedback
- add test for Join the Open Source community
- update snapshots

* Add gherkin tests for footer links

- add footerlinks feature gherkin file
- adds a comment to the hyphenizeString()
- adds keyword functions for footer
- adds data-cy tags to footer component
- updates snapshots

* Adds workflow to learn more about EO

* Add gherkin test for dataset links

- add data-cy tags to dataset sections
- modify Cy command functions names
- update snapshots

* Add cypress test to deploy_staging.yml

* Add working directory env

* Remove keywords.js from cypress test

* Add a Then step to all About and Footer tests

* Refactor step definitions

- use globalStepDefinitions
- rename keywords to commonSteps
- remove keyword from exclusion list

client/src/components/DatasetContainer/tests/__snapshots__/datasetContainer.test.tsx.snap

@@ -7,6 +7,7 @@ exports[`rendering of the DatasetContainer checks if various text fields are vis
   >
     <div
       class="grid-container-desktop-lg"
+      data-cy="datasets-used-in-methodology-block"
       data-testid="gridContainer"
     >
       <div
@@ -174,6 +175,7 @@ exports[`rendering of the DatasetContainer checks if various text fields are vis
   >
     <div
       class="grid-container-desktop-lg"
+      data-cy="additional-indicators-block"
       data-testid="gridContainer"
     >
       <div