Update protos, documentation, and naming for NAVs

[Taztingo]

Description

Updates the protos, documentation, and naming to use millis for NAVs.

closes: #1813

---

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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 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

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (ec697ce) 73.97% compared to head (29ba5d5) 73.97%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1814   +/-   ##
=======================================
  Coverage   73.97%   73.97%           
=======================================
  Files         315      315           
  Lines       44772    44772           
=======================================
  Hits        33120    33120           
  Misses      10271    10271           
  Partials     1381     1381           

Files	Coverage Δ
x/marker/keeper/msg_server.go	42.05% <100.00%> (ø)
x/marker/types/msg.go	52.59% <100.00%> (ø)
x/marker/client/cli/tx.go	62.32% <85.71%> (ø)

[nullpointer0x00]

Looks good! Thanks, I have mils instead of mills in my scope branch. I will change that...

We need to do a upgrade handler PR to fix and update prices of the navs that are in cents from last upgrade.