WIP: remove twig engine

[mabumusa1]

Q	A
Bug fix? (use the a.b branch)	[ ]
New feature/enhancement? (use the a.x branch)	[ ]
Deprecations?	[ ]
BC breaks? (use the c.x branch)	[ ]
Automated tests included?	[ ]
Related user documentation PR URL	mautic/mautic-documentation#...
Related developer documentation PR URL	mautic/developer-documentation#...
Issue(s) addressed	Fixes #...

Description:

Steps to test this PR:

1. Open this PR on Gitpod or pull down for testing locally (see docs on testing PRs here)

[mabumusa1]

Waiting on #12091 to be merged

Files that I need to work on

• ExceptionController: Register CoreBundle in twig paths to make accessible even if the system crash
• app/bundles/CoreBundle/Helper/ThemeHelper.php - Requires access to twig directly with templating helper
• app/bundles/EmailBundle/Helper/MailHelper.php - use factory (would be the best if we can refactor factory out of this Helper, we can not just use it as it but make it use twig) There is a proposal to remove it, do not think of it a lot
• Fix references to checkForTwigTemplate

[codecov]

Codecov Report

Merging #12089 (49c605b) into 5.x (2030dd2) will decrease coverage by 0.01%.
The diff coverage is 54.45%.

@@             Coverage Diff              @@
##                5.x   #12089      +/-   ##
============================================
- Coverage     54.58%   54.58%   -0.01%     
- Complexity    35994    35996       +2     
============================================
  Files          2249     2249              
  Lines        108344   108320      -24     
============================================
- Hits          59136    59122      -14     
+ Misses        49208    49198      -10     

Impacted Files	Coverage Δ
app/bundles/CoreBundle/Factory/MauticFactory.php	31.68% <0.00%> (ø)
app/bundles/EmailBundle/Helper/MailHelper.php	68.83% <0.00%> (ø)
...p/bundles/LeadBundle/Controller/AjaxController.php	8.63% <0.00%> (ø)
...les/PageBundle/EventListener/BuilderSubscriber.php	40.89% <11.11%> (ø)
...les/PointBundle/EventListener/SearchSubscriber.php	44.23% <20.00%> (+3.15%)	⬆️
...dles/UserBundle/EventListener/SearchSubscriber.php	37.50% <20.00%> (+2.88%)	⬆️
...les/EmailBundle/EventListener/SearchSubscriber.php	51.42% <33.33%> (+2.77%)	⬆️
...dles/FormBundle/EventListener/SearchSubscriber.php	50.00% <33.33%> (+2.77%)	⬆️
...es/ReportBundle/EventListener/SearchSubscriber.php	52.77% <33.33%> (+2.77%)	⬆️
...les/StageBundle/EventListener/SearchSubscriber.php	48.38% <33.33%> (+2.93%)	⬆️
... and 19 more

... and 4 files with indirect coverage changes

[mabumusa1]

Check for the format MauticFormBundle:Builder:_style.html.twig, this was not detected by the search and replace script

FormBundle is under PR #12115