Make the new calendar caption more coherent with the appointments caption

[GVodyanov]

A	B

(Also adds hover text)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 23.97%. Comparing base (6d1a23d) to head (fd1e0cb).
Report is 20 commits behind head on main.

Files	Patch %	Lines
...nts/AppNavigation/CalendarList/CalendarListNew.vue	0.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #6172      +/-   ##
============================================
- Coverage     23.97%   23.97%   -0.01%     
  Complexity      457      457              
============================================
  Files           247      247              
  Lines         11605    11606       +1     
  Branches       2177     2177              
============================================
  Hits           2782     2782              
- Misses         8508     8509       +1     
  Partials        315      315              

Flag	Coverage Δ
javascript	15.46% <0.00%> (ø)
php	59.53% <ø> (-0.03%)	⬇️

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[miaulalala]

Can't see a difference but sure 😉