fix: TODO: use base64.URLEncoding to modify TestQueryBlockByHash

[tnasu]

Description

relates: #699

• Fix TODO: use base64.URLEncoding to modify TestQueryBlockByHash
  • https://github.com/line/lbm-sdk/blob/289ca6b2d11f988d6d45e28edf691511d2764209/client/grpc/tmservice/service_test.go
  • When base64.StdEncoding use "/", it happens to find other REST path and "501 Not Implements"
• Fix typo
• Add the same feature on RPC

Motivation and context

I found out how to fix TODO

How has this been tested?

By unit test code

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

Merging #711 (7382ed7) into main (fae516e) will increase coverage by 0.04%.
The diff coverage is 74.28%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #711      +/-   ##
==========================================
+ Coverage   61.84%   61.88%   +0.04%     
==========================================
  Files         874      874              
  Lines       98557    98590      +33     
==========================================
+ Hits        60950    61011      +61     
+ Misses      33973    33948      -25     
+ Partials     3634     3631       -3     

Impacted Files	Coverage Δ
client/rpc/block.go	46.55% <72.72%> (+34.64%)	⬆️
client/grpc/tmservice/service.go	68.75% <100.00%> (ø)
client/rpc/routes.go	100.00% <100.00%> (ø)
x/token/token.go	50.00% <0.00%> (-50.00%)	⬇️
x/token/msgs.go	30.45% <0.00%> (-4.07%)	⬇️
x/collection/collection.go	78.57% <0.00%> (-1.79%)	⬇️
x/collection/msgs.go	40.55% <0.00%> (-1.30%)	⬇️
x/wasm/keeper/keeper.go	86.16% <0.00%> (+0.36%)	⬆️
client/grpc/tmservice/query.pb.gw.go	32.14% <0.00%> (+4.48%)	⬆️
x/token/validation.go	90.90% <0.00%> (+18.18%)	⬆️
... and 1 more

[tkxkd0159]

Ask questions to fully understand the context of the PR. Is it about preventing errors by making handlers instead of using gateway proxies?

[tnasu]

@tkxkd0159 I've fixed this: https://github.com/line/lbm-sdk/blob/289ca6b2d11f988d6d45e28edf691511d2764209/client/grpc/tmservice/service_test.go

I haven't fixed this: #703

[tkxkd0159]

LGTM