Fix some issue

[ponytailer]

• Internally inconsistent documentation of get and first w.r.t. behaviour on multiple resulting rows #967
• translate_list_to_dict method is a bottleneck  #957
• word typo

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (45fc13c) to head (dc3f4b1).
⚠️ Report is 256 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #996   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          200       200           
  Lines        16532     16536    +4     
=========================================
+ Hits         16532     16536    +4     

Files with missing lines	Coverage Δ
ormar/fields/foreign_key.py	100.00% <100.00%> (ø)
ormar/models/metaclass.py	100.00% <ø> (ø)
ormar/queryset/queryset.py	100.00% <ø> (ø)
ormar/queryset/utils.py	100.00% <100.00%> (ø)
ormar/signals/signal.py	100.00% <ø> (ø)

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