fix: fixed preferences toggle unpredictable behavior

[sundasnoreen12]

INF-1086

Description

Preferences toggles sometimes have a weird behaviour.

1. I turned off both toggles the questions toggle turned back on after a few seconds.
2. When it turned it off, the discussions toggle turned back on.

Solution: Disabled all buttons until the api patch request completes.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (40103a2) 46.63% compared to head (7f1c7b8) 46.44%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #901      +/-   ##
==========================================
- Coverage   46.63%   46.44%   -0.19%     
==========================================
  Files         122      116       -6     
  Lines        2552     2405     -147     
  Branches      672      640      -32     
==========================================
- Hits         1190     1117      -73     
+ Misses       1286     1214      -72     
+ Partials       76       74       -2     

Files	Coverage Δ
...fication-preferences/NotificationPreferenceRow.jsx	88.23% <100.00%> (+1.56%)	⬆️
src/notification-preferences/data/reducers.js	93.33% <ø> (ø)
src/notification-preferences/data/thunks.js	12.96% <ø> (ø)

... and 10 files with indirect coverage changes

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[AhtishamShahid]

it would be nice if there is a unit test for this change.