WithFiles was not requested when full export of report (#686)

[aHenryJard]

Proposed changes

• Add the "WithFiles" args to True when export mode equals "full" for both report list and report alone export.

Tested locally: full export of a report has now the attach file in exported json, simple export of report does not have the attach file on json.

Related issues

• Export Attached file in context of full export  #686

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...