chore!: rename message_name_space_id to message_namespace_id

[rootulp]

Closes #773

[codecov-commenter]

Codecov Report

Merging #775 (d0d0228) into main (dca08d7) will not change coverage.
The diff coverage is 78.94%.

@@           Coverage Diff           @@
##             main     #775   +/-   ##
=======================================
  Coverage   23.28%   23.28%           
=======================================
  Files          71       71           
  Lines        8788     8788           
=======================================
  Hits         2046     2046           
  Misses       6570     6570           
  Partials      172      172           

Impacted Files	Coverage Δ
x/payment/types/tx.pb.go	18.04% <63.63%> (ø)
app/estimate_square_size.go	82.66% <100.00%> (ø)
app/parse_txs.go	64.00% <100.00%> (ø)
x/payment/types/wirepayfordata.go	66.35% <100.00%> (ø)

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