Add title and settings and fix datetime to Perspective

[philippjfr]

Fixes remaining issues in #5081

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 82.08%. Comparing base (8a7e6b0) to head (aa70954).

Files	Patch %	Lines
panel/pane/perspective.py	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6482      +/-   ##
==========================================
- Coverage   82.08%   82.08%   -0.01%     
==========================================
  Files         312      312              
  Lines       46118    46122       +4     
==========================================
+ Hits        37855    37858       +3     
- Misses       8263     8264       +1     

Flag	Coverage Δ
ui-tests	36.63% <28.57%> (-0.01%)	⬇️
unitexamples-tests	71.50% <57.14%> (+<0.01%)	⬆️

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