fix(toolbar): allow customizable toolbar for active viewport and allow active tool to be deactivated via a click (#3608)

Co-authored-by: Joe Boccanfuso <joe.boccanfuso@radicalimaging.com>

platform/app/cypress/support/commands.js

@@ -262,7 +262,14 @@ Cypress.Commands.add(
     cy.get('@measurementToolsBtnPrimary').as('lengthButton');
 
     cy.get('@lengthButton').should('have.attr', 'data-tool', 'Length');
-    cy.get('@lengthButton').click();
+
+    cy.get('@lengthButton').then(button => {
+      // Only click the length tool if it is not active, in case the length tool is set up to
+      // toggle to inactive.
+      if (!button.is('.active')) {
+        cy.wrap(button).click();
+      }
+    });
 
     cy.get('@lengthButton').should('have.class', 'active');