Update command.js

Changing structure for `addDatasourceConfig`
- Intercepting the request that is made when fetching tables from a datasource
- There is a specific issue with this in regards to the smoke build. This will allow me to see deeper into the potential timing issues that are occurring

packages/builder/cypress/support/commands.js

@@ -643,13 +643,14 @@ Cypress.Commands.add("addDatasourceConfig", (datasource, skipFetch) => {
         .click({ force: true })
     })
   } else {
+    cy.intercept("**/tables").as("datasourceTables")
     cy.get(".spectrum-Dialog-grid").within(() => {
       cy.get(".spectrum-Button")
         .contains("Save and fetch tables")
         .click({ force: true })
-      // Check modal closes after datasource config & fetch
-      cy.get(".spectrum-Dialog-grid", { timeout: 7000 }).should("not.exist")
     })
+    // Wait for tables to be fetched
+    cy.wait("@datasourceTables")
   }
 })