feat(x/fbridge): set target denom as module parameters

[tkxkd0159]

Description

closes: #XXXX

• Set fbridge target denom as module parameters
• Add UpdateParams to be able to change this value in the future.

Motivation and context

How has this been tested?

Screenshots (if appropriate):

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes.
• I have updated the documentation accordingly.
• I have updated API documentation client/docs/swagger-ui/swagger.yaml

[codecov]

Codecov Report

Attention: Patch coverage is 29.54545% with 31 lines in your changes are missing coverage. Please review.

Project coverage is 69.50%. Comparing base (5e2cd7f) to head (be50a04).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1366      +/-   ##
==========================================
- Coverage   69.53%   69.50%   -0.04%     
==========================================
  Files         672      672              
  Lines       56111    56154      +43     
==========================================
+ Hits        39019    39029      +10     
- Misses      14827    14858      +31     
- Partials     2265     2267       +2     

Files	Coverage Δ
simapp/app.go	80.06% <100.00%> (ø)
x/fbridge/keeper/keeper.go	72.09% <100.00%> (-0.33%)	⬇️
x/fbridge/keeper/params.go	86.66% <100.00%> (+3.33%)	⬆️
x/fbridge/keeper/transfer.go	74.54% <100.00%> (ø)
x/fbridge/types/codec.go	54.28% <50.00%> (-0.26%)	⬇️
x/fbridge/types/genesis.go	0.00% <0.00%> (ø)
x/fbridge/keeper/genesis.go	8.47% <0.00%> (-1.88%)	⬇️
x/fbridge/types/msgs.go	0.00% <0.00%> (ø)
x/fbridge/types/params.go	38.88% <0.00%> (-3.54%)	⬇️
x/fbridge/keeper/msg_server.go	0.00% <0.00%> (ø)

... and 4 files with indirect coverage changes