feat(APP-1032): Implement action decoding/details view (9/10)

[milosh86]

Description

Closes APP-1032.

Adds the read-only details view for a forwardMessage action rendered back from a proposal, using the app's
actionViewRegistry (CrossChainControllerActionType.CROSS_CHAIN_EXECUTE).

• CrossChainControllerExecuteActionDetails shows the destination chain (name + logo, resolved from chainId via
  networkUtils.getNetworkByChainId, falling back to Chain {chainId} for unsupported chains) and the gas limit, then
  re-decodes the _message payload's Action[] tuple itself (forwardMessageActionsAbi, now shared with the create
  view instead of duplicated) to check the backend-decoded sub-actions against.
• CrossChainControllerNestedActionsList renders those sub-actions with ProposalActions.Item directly — unlike the
  generic NestedActionsList, it does not resolve a plugin-specific component for them, since the DAO's own network
  and installed plugins belong to the origin chain, not the destination chain the actions execute on.
• proposalActionUtils.resolveNestedActions / buildRawActionStubs — lifted out of NestedActionsList (now just a
  thin caller) so both the generic and cross-chain lists share the same raw-tuple-vs-decoded-length fallback logic.
• IRawActionTuple moved to modules/governance/types as a shared type instead of being declared locally in
  NestedActionsList.

Dependencies: stacked on app-1054-implement-gaslimit-param → app-1056-… → app-1053-… → main. Merge the bases
first.

Type of Change

• Minor: Feature (non-breaking change which adds new functionality)

Developer Checklist:

• Manually smoke tested the functionality in a preview or locally
• Confirmed there are no new warnings or errors in the browser console
• (For User Stories only) Double-checked that all Acceptance Criteria are satisfied
• Confirmed there are no new warnings on automated tests
• Merged and published any dependent changes in downstream modules
• Selected the correct base branch
• Commented the code in hard-to-understand areas
• Followed the code style guidelines of this project
• Reviewed that the Files Changed in Github's UI reflect my intended changes
• Confirmed the pipeline checks are not failing

Review Checklist:

• (For User Stories only) Tested in a preview or locally that all Acceptance Criteria are satisfied
• Confirmed that changes follow the code style guidelines of this project

[linear-code]

APP-1032

[github-actions]

🚀 Preview Deployment: View Here

[github-actions]

E2E results (preview)

Smoke

Base URL	https://app-next-8jedkev7t-aragon-app.vercel.app
Suite	smoke
Playwright result	✅ passed
Summary	82 passed
HTML report	View report
GitHub job	✅ completed

View run #4918