Add client config subcommand to CLI (#8953)

* add client config

* addressed reviewers comments

* refactored,ready for review

* fixed linter issues and addressed reviewers comments

* Bump golangci-lint

* fix linter warnings

* fix some tests

Co-authored-by: Alessio Treglia <alessio@tendermint.com>
Co-authored-by: Amaury <1293565+amaurym@users.noreply.github.com>

.github/workflows/lint.yml

@@ -23,7 +23,7 @@ jobs:
       - uses: golangci/golangci-lint-action@master
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.37
+          version: v1.39
           args: --timeout 10m
           github-token: ${{ secrets.github_token }}
         if: env.GIT_DIFF