Clean up cloud services config dialog

[mhaack]

Description

Clean up cloud services config dialog labels & description, set default values where possible and make store view optionally as it falls back to default if empty.

Related Issue

CIF-1341

Motivation and Context

Simplify configuration for authors.

Screenshots (if appropriate):

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have signed the Adobe Open Source CLA.
• [ ] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes and the overall coverage did not decrease.
• [x] All unit tests pass on CircleCi.
• [x] I ran all tests locally and they pass.

[codecov[bot]]

Codecov Report

Merging #115 into master will increase coverage by 0.27%. The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #115      +/-   ##
============================================
+ Coverage     87.65%   87.93%   +0.27%     
  Complexity      460      460              
============================================
  Files            34       34              
  Lines          1823     1823              
  Branches        277      277              
============================================
+ Hits           1598     1603       +5     
+ Misses           99       94       -5     
  Partials        126      126

Flag	Coverage Δ	Complexity Δ
#integration	49.88% <ø> (ø)	250 <ø> (+1)	:arrow_up:
#karma	96.02% <ø> (+3.31%)	0 <ø> (ø)	:arrow_down:
#unittests	83.91% <ø> (ø)	444 <ø> (ø)	:arrow_down:

Impacted Files	Coverage Δ	Complexity Δ
...omponents/common/cifpicker/clientlibs/cifpicker.js	91.11% <0%> (+11.11%)	0% <0%> (ø)	:arrow_down:

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