use first pass output for jinja templates whenever possible

[sHermanGriffiths]

Describe Your Changes

• wrapped render_content filter in _debug_assist
• delete unnecessary reference to template.root_render_func
• don't rerender templates that don't need to be

How Did You Test It

I exported a Prenuvo document (see Figures 1 and 2) that used both types of jinja templates and ensured that both types of templates rendered properly

Figure 1

Figure 2