fix: [M3-10289] - Enhance Devtools to support aclpBetaServices nested Feature flags

[pmakode-akamai]

Description 📝

Devtools currently supports toggling only 0 and 1-level feature flags. With the recent addition of 2-level nested flags (for eg., aclpBetaServices.ServiceType.flagName) under aclpBetaServices, the toggling is not working as expected.

This update should fix the current behavior and support setting nested flags at any depth recursively to ensure correct behavior.

Changes 🔄

• Updated feature flag toggling to support recursive toggling at any depth, instead of being limited to root (0-level) and 1-level flags

Target release date 🗓️

N/A

Preview 📷

Before	After
Screen.Recording.2025-07-07.at.11.31.39.AM.mov	Screen.Recording.2025-07-07.at.11.24.22.AM.mov

How to test 🧪

Prerequisites

• The Alerts section under Additional Options in the Create Linode flow is only visible for ACLP-supported regions (e.g., US, Washington DC) and when the aclpBetaServices.linode.alerts feature flag is enabled

Reproduction steps

• Follow the steps in the attached video ("Before")

Verification steps

• Devtools should continue to work as expected for 0-level and 1-level feature flags
• Devtools should support toggling and saving 2-level nested flags (e.g., aclpBetaServices.ServiceType.flagName)
• All toggled feature flags should be correctly reflected in Local Storage and UI

Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
❔ Our contribution guidelines
🤏 Splitting feature into small PRs
➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
🚩 Using a feature flag to protect the release
👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All unit tests are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[linode-gh-bot]

Cloud Manager UI test results

🎉 675 passing tests on test run #4 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
0 Failing	675 Passing	4 Skipped	125m 13s