chore(tests): add js validation tests

These are the first javascript unit tests. Added them to the CI worflow.
Closes #2930

web/jest.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  transform: { '^.+\\.ts?$': 'ts-jest' },
+  testEnvironment: 'node',
+  testRegex: '/tests/.*\\.(test|spec)?\\.(ts|tsx)$',
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+};