add reverse iteration to pagination

[aleem1314]

Description

closes: #8754

---

Before we can merge this PR, please make sure that all the following items have been
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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.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

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[codecov]

Codecov Report

Merging #8875 (0d2e9ac) into master (e30959c) will decrease coverage by 0.03%.
The diff coverage is 76.11%.

@@            Coverage Diff             @@
##           master    #8875      +/-   ##
==========================================
- Coverage   58.91%   58.88%   -0.04%     
==========================================
  Files         574      571       -3     
  Lines       32122    32114       -8     
==========================================
- Hits        18924    18909      -15     
- Misses      10979    10983       +4     
- Partials     2219     2222       +3     

Impacted Files	Coverage Δ
client/flags/flags.go	20.40% <0.00%> (-0.43%)	⬇️
client/utils.go	43.33% <0.00%> (-3.10%)	⬇️
x/feegrant/keeper/keeper.go	78.65% <ø> (ø)
x/auth/ante/ante.go	66.66% <57.89%> (-33.34%)	⬇️
simapp/app.go	82.84% <81.81%> (-0.50%)	⬇️
x/auth/ante/fee.go	78.43% <83.33%> (+4.07%)	⬆️
types/query/filtered_pagination.go	80.76% <100.00%> (+6.25%)	⬆️
types/query/pagination.go	80.00% <100.00%> (+3.43%)	⬆️

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[anilcse]

Lgtm

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[fedekunze]

ACK, can you add a changelog entry? 🙏