E2E test fixups (#2045)

* Reinstall reporter and re-enable skipped tests

* Fixups for Linux

* Mac fixes

* Windows fixes

* Use keyboard shortcuts instead of menu for most menu actions

* Couple fixes

* One more fix for now

* Windows fixes

* Lint fixes

* Change up developer tools tests to be more consistent

* Fix key for mac

* Couple fixes for flaky tests/to avoid crashes on unload

e2e/specs/linux_dark_mode.test.js

@@ -30,7 +30,7 @@ describe('dark_mode', function desc() {
         }
     });
 
-    if (process.platform !== 'darwin') {
+    if (process.platform === 'linux') {
         it('MM-T2465 Linux Dark Mode Toggle', async () => {
             const mainWindow = this.app.windows().find((window) => window.url().includes('index'));
             mainWindow.should.not.be.null;