JS linting fixes

settings/jest.config.js

@@ -1,10 +1,10 @@
 /** @type {import('jest').Config} */
 const config = {
-  testEnvironment: "jsdom",
-  moduleNameMapper: {
-    '^uuid$': require.resolve('uuid')
-  },
-  setupFilesAfterEnv: ['./jest.setup.js']
+	testEnvironment: 'jsdom',
+	moduleNameMapper: {
+		'^uuid$': require.resolve( 'uuid' ),
+	},
+	setupFilesAfterEnv: [ './jest.setup.js' ],
 };
 
 module.exports = config;

settings/jest.setup.js

@@ -1,13 +1,14 @@
-Object.defineProperty(window, 'matchMedia', {
-  writable: true,
-  value: jest.fn().mockImplementation(query => ({
-    matches: false,
-    media: query,
-    onchange: null,
-    addListener: jest.fn(), // deprecated
-    removeListener: jest.fn(), // deprecated
-    addEventListener: jest.fn(),
-    removeEventListener: jest.fn(),
-    dispatchEvent: jest.fn()
-  }))
-})
+/* global jest */
+Object.defineProperty( window, 'matchMedia', {
+	writable: true,
+	value: jest.fn().mockImplementation( ( query ) => ( {
+		matches: false,
+		media: query,
+		onchange: null,
+		addListener: jest.fn(),
+		removeListener: jest.fn(),
+		addEventListener: jest.fn(),
+		removeEventListener: jest.fn(),
+		dispatchEvent: jest.fn(),
+	} ) ),
+} );