feat(ui): ticket cc bcc improvements

[ssiyad]

• Add emails on space and comma (in addition to enter)
• Ability to add email on paste (from clipboard)

[codecov]

Codecov Report

Patch coverage: 12.50% and project coverage change: -0.05 ⚠️

Comparison is base (4a2b544) 12.52% compared to head (a4ae066) 12.48%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1070      +/-   ##
==========================================
- Coverage   12.52%   12.48%   -0.05%     
==========================================
  Files          52       52              
  Lines        1748     1754       +6     
==========================================
  Hits          219      219              
- Misses       1529     1535       +6     

Impacted Files	Coverage Δ
frappedesk/frappedesk/doctype/article/article.py	0.00% <0.00%> (ø)
frappedesk/frappedesk/doctype/category/category.py	0.00% <ø> (ø)
frappedesk/__init__.py	100.00% <100.00%> (ø)

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