inserting header doesnot changes font size.

[Ashuto7h]

Describe the bug
When inserting a header, there is no change In font size that can depict that it is a header.

Expected behavior
Different headers should be clearly visible using different font sizes and boldness.

Additional
I think that it would be better if we can also edit the output at the same time and get a preview of those changes in the input part.

[hkaur008]

that's a cool idea but we are working in different flow !