Move spaces tests from Puppeteer to Cypress (#8645)

* Move spaces tests from Puppeteer to Cypress

* Add missing fixture

* Tweak synapsedocker to not double error on a docker failure

* Fix space hierarchy loading race condition

Fixes https://github.com/matrix-org/element-web-rageshakes/issues/10345

* Fix race condition when creating public space with url update code

* Try Electron once more due to perms issues around clipboard

* Try set browser permissions properly

* Try to enable clipboard another way

* Try electron again

* Try electron again again

* Switch to built-in cypress feature for file uploads

* Mock clipboard instead

* TMPDIR ftw?

* uid:gid pls

* Clipboard tests can now run on any browser due to mocking

* Test Enter as well as button for space creation

* Make the test actually work

* Update cypress/support/util.ts

Co-authored-by: Eric Eastwood <erice@element.io>

Co-authored-by: Eric Eastwood <erice@element.io>

cypress/support/settings.ts

@@ -16,7 +16,6 @@ limitations under the License.
 
 /// <reference types="cypress" />
 
-import "./client"; // XXX: without an (any) import here, types break down
 import Chainable = Cypress.Chainable;
 
 declare global {
@@ -99,3 +98,6 @@ Cypress.Commands.add("leaveBeta", (name: string): Chainable<JQuery<HTMLElement>>
         return cy.get(".mx_BetaCard_buttons").contains("Leave the beta").click();
     });
 });
+
+// Needed to make this file a module
+export { };