docs: add docs on modules (backport #2269)

[mergify]

Description

Closes: #XXXX

ToDo:

• update previous pages to be consistent with the changes introduced by permissionless @insumity
• add state for consumer module in docs/docs/build/modules/03-consumer.md
• add info on client (CLI, REST, gRPC) for both consumer and provider module @sainoe

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Author Checklist

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please add links to any relevant follow up issues.

I have...

• included the correct docs: prefix in the PR title
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.

I have...

• Confirmed the correct docs: prefix in the PR title
• Confirmed all author checklist items have been addressed
• Confirmed that this PR only changes documentation
• Reviewed content for consistency
• Reviewed content for spelling and grammar
• Tested instructions (if applicable)
• Checked that the documentation website can be built and deployed successfully (run make build-docs)

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This is an automatic backport of pull request #2269 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of d0a1398 has failed:

On branch mergify/bp/release/v6.1.x/pr-2269
Your branch is up to date with 'origin/release/v6.1.x'.

You are currently cherry-picking commit d0a1398e.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .gitignore
	modified:   docs/build_deploy.sh
	new file:   docs/docs/build/_category_.json
	new file:   docs/docs/build/modules/01-overview.md
	new file:   docs/docs/build/modules/02-provider.md
	new file:   docs/docs/build/modules/03-consumer.md
	renamed:    docs/docs/features/democracy-modules.md -> docs/docs/build/modules/04-democracy.md
	new file:   docs/docs/build/modules/_category_.json
	modified:   docs/docs/consumer-development/consumer-genesis-transformation.md
	modified:   docs/docs/features/_category_.json
	modified:   docs/docs/features/reward-distribution.md
	modified:   docs/docs/frequently-asked-questions.md
	modified:   docs/docs/index.mdx
	modified:   docs/docs/integrators/_category_.json
	modified:   docs/docs/introduction/_category_.json
	modified:   docs/docs/introduction/overview.md
	modified:   docs/docs/introduction/terminology.md
	modified:   docs/docs/validators/_category_.json
	modified:   docs/docusaurus.config.js
	modified:   docs/supported_versions.json
	modified:   tests/e2e/test_runner.go
	modified:   x/ccv/consumer/keeper/keeper.go
	modified:   x/ccv/consumer/types/keys.go
	modified:   x/ccv/provider/keeper/permissionless.go

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by them: docs/docs/introduction/params.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally