Fix the save/discard/revert flow for Prompt Settings

[hassoncs]

I found a bug on the Prompt page! Here's a quick fix

Normally when you edit things on the settings pages, the save button lights up, and clicking cancel will discard your changes. Currently the prompts page doesn't support this flow- the prompts are immediately saved when they change and the revert button doesn't seem to work.

With this change, we use the normal cachedState system in the SettingView, allowing users to discard changes to their prompts like any other setting. This removed the need for the resetSupportPrompt event since we send the entire state of the support prompts (same as before).

Related GitHub Issue

Closes: #

Type of Change

• 🐛 Bug Fix: Non-breaking change that fixes an issue.
• ✨ New Feature: Non-breaking change that adds functionality.
• 💥 Breaking Change: Fix or feature that would cause existing functionality to not work as expected.
• ♻️ Refactor: Code change that neither fixes a bug nor adds a feature.
• 💅 Style: Changes that do not affect the meaning of the code (white-space, formatting, etc.).
• 📚 Documentation: Updates to documentation files.
• ⚙️ Build/CI: Changes to the build process or CI configuration.
• 🧹 Chore: Other changes that don't modify src or test files.

Pre-Submission Checklist

• Issue Linked: This PR is linked to an approved GitHub Issue (see "Related GitHub Issue" above).
• Scope: My changes are focused on the linked issue (one major feature/fix per PR).
• Self-Review: I have performed a thorough self-review of my code.
• Code Quality:
  • My code adheres to the project's style guidelines.
  • There are no new linting errors or warnings (npm run lint).
  • All debug code (e.g., console.log) has been removed.
• Testing:
  • New and/or updated tests have been added to cover my changes.
  • All tests pass locally (npm test).
  • The application builds successfully with my changes.
• Branch Hygiene: My branch is up-to-date (rebased) with the main branch.
• Documentation Impact: I have considered if my changes require documentation updates (see "Documentation Updates" section below).
• Changeset: A changeset has been created using npm run changeset if this PR includes user-facing changes or dependency updates.
• Contribution Guidelines: I have read and agree to the Contributor Guidelines.

Screenshots / Videos

Before, no save/discard and revert button doesn't work

After, save discard work, revert button works

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Important

Adds save/discard functionality for support prompts in settings, updating state management and component behavior.

• Behavior:
  • Implements save/discard flow for support prompts in webviewMessageHandler.ts, replacing immediate save behavior.
  • Removes resetSupportPrompt event handling in webviewMessageHandler.ts.
• Components:
  • Updates PromptsSettings to manage prompt updates and resets locally.
  • Integrates prompt state management in SettingsView.tsx.
• State Management:
  • Updates ExtensionStateContext.tsx to support new prompt state management.

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[mrubens]

Thank you!