[#2968] Add word-wrap + overflow-wrap to PDF export CSS

[pi-sigma]

Taiga: https://taiga.maykinmedia.nl/project/open-inwoner/issue/2968

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.23%. Comparing base (65b1058) to head (2ea4087).
Report is 4 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1557   +/-   ##
========================================
  Coverage    94.23%   94.23%           
========================================
  Files         1068     1068           
  Lines        39348    39385   +37     
========================================
+ Hits         37080    37115   +35     
- Misses        2268     2270    +2     

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