refactor

This PR is a refactor of the codebase, but without changing (much) functionality. It may seem like a lot, but that's exaggerated by the fact that a lot of it is just moved round. Here are the details -

- This updates `react-scripts`/`@craco/craco` to support `[email protected]`. As part of that, I've also disabled the in-browser linting experience (dilanx/craco#205). *This is temporary*. I'll enable it when it's fixed on craco's side, but that shouldn't block this PR. This should fix #125.
- The refactor is mainly around making this repository self-hosted (#120). The steps taken to achieve that were:
  - e2e-tests were split up and inlined into `modular-scripts` / `create-modular-react-app`, as applicable. This also enabled removing verdaccio and associated complexity.
  - `cra-template-modular-typescript` was inlined into `modular-scripts`; this has the benfit of preventing one waterfall step when adding a new app to a project.
  - We had a bug where we needed at least one app named `app` for all tests to run, I fixed that. We still need at least one app, but it can be named whatever. (I've named it `modular-site`, and we can use it for experiments, and maybe hosting documentation). In the future we dhsould fix it so it doesn't need any at all, but that's an edge case.
- I've removed `modular-scripts/src/getModularViewMap`, and will instead implement `modular-views.macro` (#59). I'm working on it right now, but it shouldn't block this PR.

- I need to implement and write tests for the views macro, as mentioned above.
- While this runs all tests on CI, it skips one test, the one that starts up a server and tests whether the app works as expected. This is because it still leaves hanging processes, and will eat up our github-actions minutes. Working on fixing it, it's a weird one. (probably related to #54)
- I haven't verified builds yet, will do so.
- I need to simplify the root configurations for babel/eslint so that it uses the `modular` configs. It's not critical to this PR so I figured it could wait.

I'm looking for a review so I can start making changes in parallel to the above fixes. Have a look!

.changeset/young-dragons-flow.md

@@ -0,0 +1,7 @@
+---
+'create-modular-react-app': minor
+'eslint-config-modular-app': minor
+'modular-scripts': minor
+---
+
+refactor the repository to become a modular project itself.

.eslintrc.js

@@ -50,7 +50,9 @@ module.exports = {
     'import/first': ERROR,
     'import/no-amd': ERROR,
     'import/no-anonymous-default-export': WARN,
-    'import/no-extraneous-dependencies': ERROR,
+    // disabling this because it doesn't consider local yarn workspaces
+    // or root dependencies as legitimate, and we use it extensively.
+    // 'import/no-extraneous-dependencies': ERROR,
     'import/no-webpack-loader-syntax': ERROR,
   },
   settings: {
@@ -80,6 +82,7 @@ module.exports = {
       rules: {
         // TypeScript compilation already ensures that default imports exist in the referenced module
         'import/default': OFF,
+        '@typescript-eslint/ban-ts-comment': OFF,
       },
     },
     {

.gitignore

@@ -3,6 +3,11 @@
 # Dependencies
 node_modules
 
+packages/sample-app
+packages/sample-view
+packages/sample-package
+
+
 # Build output
 /packages/*/build/
 

babel.config.js

@@ -5,15 +5,15 @@ const pkgJson = require('./package.json');
 const supportedNodeVersion = semver.minVersion(pkgJson.engines.node).version;
 
 module.exports = (api) => {
-  const env = api.env();
+  api.cache(true);
 
   return {
     presets: [
       [
         '@babel/preset-env',
         {
           targets: {
-            node: env === 'test' ? 'current' : supportedNodeVersion,
+            node: supportedNodeVersion,
           },
         },
       ],