Move all E2E dependencies into its own folder, run from there (#3068)

* Move all E2E dependencies into its own folder, run from there

* Run flaky-tests from E2E folder

* This should work better

* Fix E2E test for Linux

* Fix for Windows, fix lint

e2e/specs/mattermost/copy_link.test.js

@@ -5,6 +5,7 @@
 const fs = require('fs');
 
 const {clipboard} = require('electron');
+const robot = require('robotjs');
 
 const env = require('../../modules/environment');
 const {asyncSleep} = require('../../modules/utils');
@@ -38,7 +39,17 @@ describe('copylink', function desc() {
         await env.loginToMattermost(firstServer);
         await firstServer.waitForSelector('#sidebarItem_town-square');
         await firstServer.click('#sidebarItem_town-square', {button: 'right'});
-        await firstServer.click('li.SidebarChannel.expanded.active > span > nav > div');
+        switch (process.platform) {
+        case 'linux':
+        case 'win32':
+            robot.keyTap('down');
+            robot.keyTap('down');
+            break;
+        case 'darwin':
+            robot.keyTap('c');
+            break;
+        }
+        robot.keyTap('enter');
         await firstServer.click('#sidebarItem_town-square');
         await firstServer.click('#post_textbox');
         const clipboardText = clipboard.readText();