Avoid committing it.only (getredash#3995)

* remove it.only, left by mistake

* use no-only-tests

* 'off' should be used instead of 'none'

* Dedup jest/only rule

* always error for .only

client/.eslintrc.js

@@ -1,7 +1,7 @@
 module.exports = {
   root: true,
   extends: ["airbnb", "plugin:compat/recommended"],
-  plugins: ["jest", "compat"],
+  plugins: ["jest", "compat", "no-only-tests"],
   settings: {
     "import/resolver": "webpack"
   },
@@ -27,6 +27,7 @@ module.exports = {
     "no-control-regex": "off",
     "no-multiple-empty-lines": "warn",
     "no-script-url": "off", // some <a> tags should have href="javascript:void(0)"
+    "no-only-tests/no-only-tests": "error",
     "operator-linebreak": "off",
     "react/destructuring-assignment": "off",
     "react/jsx-filename-extension": "off",

client/app/.eslintrc.js

@@ -4,4 +4,7 @@ module.exports = {
   env: {
     "jest/globals": true,
   },
+  rules: {
+    "jest/no-focused-tests": "off",
+  },
 };

client/cypress/integration/dashboard/dashboard_spec.js

@@ -170,7 +170,7 @@ describe('Dashboard', () => {
         });
       };
 
-      it.only('when there are no parameters', function () {
+      it('when there are no parameters', function () {
         addWidgetAndShareDashboard(this.dashboardUrl, 'select 1', {}, (secretAddress) => {
           cy.logout();
           cy.visit(secretAddress);