enabling multiworkspace support

[jcchr]

📝 Description

PR enables support for multiworkspaces

✨ Type of Change

Select the type of change your PR introduces:

• 🐞 Bug fix – Non-breaking change which fixes an issue
• 🚀 New feature – Non-breaking change which adds functionality
• 🔨 Refactor – Non-breaking change which refactors the code base
• 💥 Breaking change – Changes that break existing functionality
• 📚 Documentation update
• 🔒 Security update
• 🧪 Tests

🧪 Testing Scenarios

Check if after mering PR - support for multiworkspaces is enabled and behaves correctly.

• ✅ Tested manually
• 🤖 Run automated end-to-end tests

✅ Checklist

Before submitting the PR, ensure the following:

• 🔍 PR title is clear and meaningful
• ✍️ PR description clearly explains the changes and their reason
• 📝 I have linked the PR to the corresponding GitHub Issues, if any
• 💬 I have commented my code, especially in hard-to-understand areas
• 📄 I have made corresponding changes to the documentation
• ✅ I have added tests that prove my fix is effective or my feature works

[Copilot]

Pull Request Overview

This PR enables multiworkspace support by activating the FEATURE_FLAG_WORKSPACE_ACTIONS feature flag across all environments and configuration files.

• Enables workspace actions feature flag in development and production environments
• Updates configuration files to consistently set the feature flag to true

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
web_ui/packages/core/src/feature-flags/services/feature-flag-service.interface.ts	Enables workspace actions feature flag in frontend development configuration
platform/services/installer/app/constants/feature_flags.py	Enables workspace actions feature flag in installer service
deploy/charts/istio/istio-gateway/chart/values.yaml	Enables workspace actions feature flag in Istio gateway deployment configuration
deploy/charts/impt/chart/values.yaml	Enables workspace actions feature flag in IMPT deployment configuration (two locations)

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