feat(DEV-17): fix failing jest tests

jest.config.ts

@@ -74,7 +74,10 @@ export default {
   // ],
 
   // A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
-  // moduleNameMapper: {},
+  moduleNameMapper: {
+    '\\.(css|less|sass|scss)$': '<rootDir>/src/__mocks__/styleMock.js',
+    '\\.(gif|ttf|eot|svg)$': '<rootDir>/src/__mocks__/fileMock.js',
+  },
 
   // An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
   // modulePathIgnorePatterns: [],

src/__mocks__/fileMock.js

@@ -0,0 +1 @@
+module.exports = 'test-file-stub'

src/__mocks__/styleMock.js

@@ -0,0 +1 @@
+module.exports = {};