The content wrapping table was not set width 100%.
However, the table is not needed since each column block adds its own table.
So removing the incorrect table fixes the issue.
[MAILPOET-5753]
In this commit, I copied the code for processing the rendering of emails
from the current renderer.
This will allow us to use different base templates and styles.
Ideally, we should be able to add hooks and reuse the renderer from the engine namespace in
the current renderer.
[MAILPOET-5540]
