Event doc bugs

[blindspeed90]

What is the current behavior? Describe the bug From https://www.tiny.cloud/docs/advanced/events/ vs. EventTypes.ts

• ExecCommand/BeforeExecCommand; 'ui' not optional
• NodeChange; missing 'initial?'
• LoadContent; missing 'load' and 'element'; in the callback both missing 'format' and 'initial'
• Change; missing 'lastLevel'
• PostProcess; 'content', not 'node' and 'format'; in the callback i saw 'content' and 'format', so .ts looks to be off here

Please provide the steps to reproduce and if possible a minimal demo of the problem via fiddle.tiny.cloud or similar.

What is the expected behavior?

Which versions of TinyMCE, and which browser / OS are affected by this issue? Did this work in previous versions of TinyMCE? 6.5.1