chore: clarify negative time elapsed error (backport #1012)

[mergify]

This is an automatic backport of pull request #1012 done by Mergify.
Cherry-pick of 650016f has failed:

On branch mergify/bp/release/v2.x.x/pr-1012
Your branch is up to date with 'origin/release/v2.x.x'.

You are currently cherry-picking commit 650016f.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   x/leverage/keeper/interest.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[codecov-commenter]

Codecov Report

Merging #1013 (8fe29b9) into release/v2.x.x (08d32b5) will decrease coverage by 0.00%.
The diff coverage is 33.33%.

@@                Coverage Diff                 @@
##           release/v2.x.x    #1013      +/-   ##
==================================================
- Coverage           50.76%   50.75%   -0.01%     
==================================================
  Files                  64       64              
  Lines                9483     9482       -1     
==================================================
- Hits                 4814     4813       -1     
  Misses               4424     4424              
  Partials              245      245              

Impacted Files	Coverage Δ
x/leverage/keeper/interest.go	82.35% <33.33%> (-0.13%)	⬇️