Inline Comments: Update `p` to `div`

[sr4136]

Bug Report

In a few places, the inline comments & output are mismatched (example, others ):

// Creates a <p class='wp-block-cgb-block-<% blockName %>'></p>.
	return (
		<div className={ props.className }>

The mismatched comments and result may confuse new users.

Possible Solution

It should read:

// Creates a <div class='wp-block-cgb-block-<% blockName %>'></div>.
	return (
		<div className={ props.className }>

[ahmadawais]

PR welcomed!