Fixed argument parsing within YAML files

[caronc]

Description:

Related issue (if applicable): #403

YAML files are not correctly parsing the kwargs specified on a URL.

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• No lint errors (use flake8)
• 100% test coverage

[codecov-commenter]

Codecov Report

Merging #404 (738f84b) into master (93c7aef) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #404   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           94        94           
  Lines        11961     11984   +23     
  Branches      2003      2011    +8     
=========================================
+ Hits         11961     11984   +23     

Impacted Files	Coverage Δ
apprise/plugins/NotifyEmail.py	100.00% <ø> (ø)
apprise/config/ConfigBase.py	100.00% <100.00%> (ø)

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