v0.37.4-rc1 Cherry Picks

[alexanderbez]

Cherry-Pick the following from master:

• remove duplicate events from previous messages #5208
• bump tendermint version to v0.32.7 #5261
• Fix ledger custom coin type support bug #4716

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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)

[codecov]

Codecov Report

Merging #5262 into rc1/v0.37.4 will decrease coverage by <.01%.
The diff coverage is 83.33%.

@@               Coverage Diff               @@
##           rc1/v0.37.4    #5262      +/-   ##
===============================================
- Coverage        50.98%   50.98%   -0.01%     
===============================================
  Files              290      290              
  Lines            18850    18854       +4     
===============================================
+ Hits              9611     9612       +1     
- Misses            8546     8549       +3     
  Partials           693      693