[1.x] Revert findByKey

[rennokki]

Fixes #700 #270

[codecov-io]

Codecov Report

Merging #707 (ea59a17) into 1.x (b793f7b) will increase coverage by 0.17%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                1.x     #707      +/-   ##
============================================
+ Coverage     53.73%   53.91%   +0.17%     
+ Complexity      284      283       -1     
============================================
  Files            50       50              
  Lines           923      920       -3     
============================================
  Hits            496      496              
+ Misses          427      424       -3     

Impacted Files	Coverage Δ	Complexity Δ
src/Statistics/Http/Middleware/Authorize.php	100.00% <100.00%> (+20.00%)	2.00 <0.00> (-1.00)	⬆️
src/Apps/App.php	81.25% <0.00%> (+6.25%)	15.00% <0.00%> (ø%)

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