🐛 Remove unnecessary initialData from useQuery calls

[rszwajko]

Initial data is persisted in cache which results in:

1. isLoading flag always false
2. with custom staleTime, delaying first fetch until cache expires

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.17%. Comparing base (b654645) to head (32e9679).
Report is 154 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1940      +/-   ##
==========================================
+ Coverage   39.20%   42.17%   +2.97%     
==========================================
  Files         146      166      +20     
  Lines        4857     5318     +461     
  Branches     1164     1293     +129     
==========================================
+ Hits         1904     2243     +339     
- Misses       2939     3059     +120     
- Partials       14       16       +2     

Flag	Coverage Δ
client	42.17% <100.00%> (+2.97%)	⬆️
server	?

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[rszwajko]

@sjd78 @ibolton336
The bug was found when testing #1939 - isFetchingApplications was always false which breaks the the linking functionality.

Btw note that we use a different meaning of isFetching then React Query - under the hood it's translated to isLoading (which is a different state).