Adjust WA template to be send if present even when we have attachments

[norkans7]

The engine now include attachment for media templates so we use template when present

No change for legacy WA as that do not support other components except body

[codecov]

Codecov Report

Attention: Patch coverage is 87.10692% with 41 lines in your changes missing coverage. Please review.

Project coverage is 75.86%. Comparing base (959457a) to head (29a169d).

Files	Patch %	Lines
handlers/meta/handlers.go	87.56%	13 Missing and 10 partials ⚠️
handlers/dialog360/handler.go	86.46%	11 Missing and 7 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #757      +/-   ##
==========================================
- Coverage   75.91%   75.86%   -0.05%     
==========================================
  Files         111      111              
  Lines       10375    10387      +12     
==========================================
+ Hits         7876     7880       +4     
- Misses       1784     1788       +4     
- Partials      715      719       +4     

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