chore: setup test config for testing views

For reasons the author of this commit doesn't understand, ts-jest won't
work with '@mturley-latest/react-table-batteries', which is used on all
views. But it worked just fine with babel-jest. So now we have this
frankenstein config, using both.

babel.config.js

@@ -1 +1,11 @@
-module.exports = {};
+
+module.exports = (api) => {
+    api.cache(true)
+    const presets = ["@babel/preset-react", "@babel/preset-env"];
+    const plugins = ["@babel/plugin-transform-modules-commonjs"];
+
+    return {
+        presets,
+        plugins
+    };
+}

jest.config.js

@@ -30,13 +30,16 @@ module.exports = {
   testMatch: ['<rootDir>/**/__tests__/**/*.{ts,tsx}', '<rootDir>/**/*.{spec,test}.{ts,tsx}'],
   testEnvironment: 'jsdom',
   transform: {
-    '^.+\\.(js|jsx|ts|tsx)$': '<rootDir>/node_modules/ts-jest',
+    '^.+\\.(jsx|ts|tsx)$': '<rootDir>/node_modules/ts-jest',
+    // @mturley-latest/react-table-batteries lib proved to be challenging to properly transform 
+    // using ts-jest; for this reason, js files are transformed with babel for now;
+    '^.+\\.js$': '<rootDir>/node_modules/babel-jest',
     '^.+\\.css$': '<rootDir>/config/jest.transform.style.js',
     '^(?!.*\\.(js|jsx|ts|tsx|css|json)$)': '<rootDir>/config/jest.transform.file.js'
   },
   transformIgnorePatterns: [
-    '[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$',
+    '[/\\\\]node_modules[/\\\\][/\\.+\\\\]*.+\\.(jsx|mjs|cjs|ts|tsx)$',
     '^.+\\.module\\.(css|sass|scss)$'
   ],
-  watchPlugins: ['jest-watch-typeahead/filename', 'jest-watch-typeahead/testname']
+  watchPlugins: ['jest-watch-typeahead/filename', 'jest-watch-typeahead/testname'],
 };