Fixed issue loading filters for an empty config

[codders]

No description provided.

[codecov-commenter]

Codecov Report

Merging #13 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #13   +/-   ##
=======================================
  Coverage   70.40%   70.40%           
=======================================
  Files          12       12           
  Lines         669      669           
  Branches       81       81           
=======================================
  Hits          471      471           
  Misses        172      172           
  Partials       26       26           

Impacted Files	Coverage Δ
flathunter/config.py	100.00% <100.00%> (ø)

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