Return Height on Query Errors + Update Account Endpoint

[alexanderbez]

• Return response height even upon error as it may be useful for the downstream caller
• Have /auth/accounts/{address} return a 200 with an empty account upon error when that error is that the account doesn't exist (a temporary precursor to Standardize API Responses/HTTP Codes #4923).

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• Targeted PR against correct branch (see CONTRIBUTING.md)

• Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• Wrote tests

• Updated relevant documentation (docs/)

• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• Re-reviewed Files changed in the github PR explorer

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For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[tac0turtle]

⚡️ LGTM

[codecov]

Codecov Report

Merging #4924 into master will not change coverage.
The diff coverage is 50%.

@@           Coverage Diff           @@
##           master    #4924   +/-   ##
=======================================
  Coverage   53.74%   53.74%           
=======================================
  Files         272      272           
  Lines       17105    17105           
=======================================
  Hits         9193     9193           
  Misses       7221     7221           
  Partials      691      691