[#408] Improve error messages

[Decipher]

Types of changes

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

Description

• Added error handling to DruxtClient
• Added error handling to DruxtModule

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly. (PR: #)
• I have added tests to cover my changes (if not applicable, please state why)
• All new and existing tests are passing.

Screenshots/Media:

[changeset-bot]

🦋 Changeset detected

Latest commit: befb12d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 10 packages

Name	Type
druxt-entity	Minor
druxt	Minor
druxt-router	Minor
druxt-blocks	Patch
druxt-site	Patch
druxt-views	Patch
druxt-breadcrumb	Patch
druxt-menu	Patch
druxt-schema	Patch
druxt-test-utils	Major

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Click here if you're a maintainer who wants to add another changeset to this PR

[codecov]

Codecov Report

Merging #410 (befb12d) into develop (dc226c2) will decrease coverage by 0.07%.
The diff coverage is 93.61%.

@@             Coverage Diff             @@
##           develop     #410      +/-   ##
===========================================
- Coverage    96.93%   96.85%   -0.08%     
===========================================
  Files           88       88              
  Lines         2869     2897      +28     
  Branches       621      625       +4     
===========================================
+ Hits          2781     2806      +25     
- Misses          80       83       +3     
  Partials         8        8              

Impacted Files	Coverage Δ
packages/router/src/router.js	100.00% <ø> (ø)
packages/druxt/src/client.js	91.22% <92.50%> (-0.78%)	⬇️
packages/druxt/src/components/DruxtModule.vue	100.00% <100.00%> (ø)
packages/entity/src/components/DruxtEntityForm.vue	100.00% <100.00%> (ø)

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[Decipher]

While test coverage is lower than I'd like, I don't believe theres much risk with this particular change and I'm going to merge this.