chore: dashboard changes

[ssiyad]

• change color scheme
• change single string card height
• add user specific tickets count - open/replied

[codecov]

Codecov Report

Patch coverage: 24.19% and project coverage change: +0.72 🎉

Comparison is base (75e655f) 12.87% compared to head (581ac8f) 13.60%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1260      +/-   ##
==========================================
+ Coverage   12.87%   13.60%   +0.72%     
==========================================
  Files          52       52              
  Lines        1848     1867      +19     
==========================================
+ Hits          238      254      +16     
- Misses       1610     1613       +3     

Impacted Files	Coverage Δ
...esk/doctype/hd_ticket_comment/hd_ticket_comment.py	0.00% <0.00%> (ø)
...k/doctype/hd_ticket_template/hd_ticket_template.py	0.00% <ø> (ø)
helpdesk/helpdesk/doctype/hd_ticket/hd_ticket.py	22.56% <17.77%> (+0.04%)	⬆️
helpdesk/utils.py	39.13% <66.66%> (+39.13%)	⬆️
helpdesk/__init__.py	100.00% <100.00%> (ø)

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