VAR-209 | Show errors to staff members if editing of reservations fail

[badrange]

Before this errors from Respa got swallowed and try-catch would not catch any errors.

[codecov-io]

Codecov Report

Merging #1033 into develop will decrease coverage by 0.1%.
The diff coverage is 8.33%.

@@             Coverage Diff             @@
##           develop    #1033      +/-   ##
===========================================
- Coverage    76.71%   76.61%   -0.11%     
===========================================
  Files          240      240              
  Lines         3423     3429       +6     
  Branches       619      619              
===========================================
+ Hits          2626     2627       +1     
- Misses         690      695       +5     
  Partials       107      107

Impacted Files	Coverage Δ
.../reservation/manage/page/ManageReservationsPage.js	36.66% <0%> (-2.62%)	⬇️
src/common/api/client.js	85.71% <33.33%> (-3.76%)	⬇️

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