[Bug] Enter key does not work in keyboard compatibility mode

[FlamedDogo99]

Describe the Bug
Related to #13
When using input events, nothing is dispatched when pressing the return key

Fix
Wrap hiddenInput with a form that uses onSubmit

<form onsubmit="keyEvent('return', 'keydown')">
  <input type="text", id="hiddenInput">
  <input type="submit", style="opacity: 0">
</form>

Steps to Reproduce

1. Start EaglerCraft client with Eagler Mobile
2. Set window.keyboardFix to true
3. Join a server or create a new world
4. Press the chat 💬 button on the top row of buttons
5. Press the keyboard ⌨️ button on the top row of buttons
6. Note that pressing the enter key does not comment anything

Additional Information
This issue will occur on any device when window.keyboardFix == true

[FlamedDogo99]

Using beforeinput event listener with inputType insertLineBreak is much easier.

[FlamedDogo99]

This has been fixed