Node version updates (#18)

This change updates the minimum support version of node to the current
LTS version (18/hydrogen).

This also removes the usage of the standard-things/esm package as the
entry point. Since this package is no longer maintained, newer language
features used in some internal dependencies were causing runtime errors.
Until we are ready to move this package fully over, we are using babel
to transpile down to a cjs friendly version.

Are there any breaking changes you are aware of in the PR?

[(Yes)]

If yes, what are they?

- Updated minimum supported node version
- Changed entry point for the package

## General Checklist

* [x] Change is tested locally
* [x] Demo is updated to exercise change (if applicable)
* [x] [WIP] flag is removed from the title

.babelrc

@@ -0,0 +1,12 @@
+{
+    "presets": [
+        [
+            "@babel/preset-env",
+            {
+                "targets": {
+                    "node": "current"
+                }
+            }
+        ]
+    ]
+}

.gitignore

@@ -49,6 +49,7 @@ jspm_packages/
 
 # TypeScript v1 declaration files
 typings/
+types/
 
 # TypeScript cache
 *.tsbuildinfo
@@ -81,12 +82,9 @@ typings/
 # parcel-bundler cache (https://parceljs.org/)
 .cache
 
-# Next.js build output
-.next
-
-# Nuxt.js build / generate output
-.nuxt
+# Build output
 dist
+cjs
 
 # Gatsby files
 .cache/

.nvmrc

@@ -1 +1 @@
-lts/fermium
+lts/hydrogen

demo/package.json

@@ -5,7 +5,7 @@
   "main": "src/index.js",
   "types": "./types/index.d.ts",
   "scripts": {
-    "start": "node ../src/cli.entry.js -i index.source.html -o index.html && ws --spa index.html"
+    "start": "node ../cjs/cli.entry.js -i index.source.html -o index.html && ws --spa index.html"
   },
   "devDependencies": {
     "local-web-server": "5.2.1"

jasmine.json

@@ -1,7 +1,7 @@
 {
     "helper paths are relative to": "spec_dir",
     "helpers": [
-        "../node_modules/esm/esm.js"
+        "../node_modules/@babel/register/lib/index.js"
     ],
     "jsLoader": "require",
     "spec_dir": "./src",