feat: replace Monaco by Ace

- Remove the Monaco Editor because it was to heavy and hard to integrate
- Use Ace instead
- Use the lowercase identifier for languages (ex: "Text" -> "text")
- Select automatically the default language in the drop down to create a note
  (like the expiration)
- Add `ace_directory` to serve assets from a local folder instead of a CDN
- "hcl" syntax highlighting has been removed
- "go" syntax highlighting has been renamed to "golang"
- Add option to disable the editor

Fixes #32.

Signed-off-by: Julien Riou <julien@riou.xyz>

package.json

@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "ace-builds": "^1.43.3",
     "bootstrap": "^5.3.8"
   }
 }