feat: add guide tour and terminal features with localization support

[iasthc]

This pull request introduces a new integrated terminal feature into the authenticated layout and improves internationalization for several UI actions. It also simplifies the sidebar navigation logic by removing conditional checks for Rook Ceph and makes the storage navigation always visible. Below are the most important changes:

Terminal Integration:

• Added a terminal button to the header that toggles a resizable terminal pane at the bottom of the main layout. The terminal uses the new Terminal component and allows users to interact with a cluster pod directly from the UI. [1] [2] [3]

Internationalization Improvements:

• Added new translation strings for "Guide Tour," "Terminal," "Close Terminal," "Toggle Clusters," and "Switch Cluster" in both English and Traditional Chinese. Updated relevant UI elements to use these translations for better localization. [1] [2] [3] [4] [5]

Sidebar Navigation Simplification:

• Removed the conditional logic that checked for the presence of Rook Ceph CRDs before displaying the storage navigation. The storage section is now always shown in the sidebar, streamlining the navigation structure. [1] [2] [3] [4]

Component Naming and Import Updates:

• Renamed the cluster import dialog component from ImportCluster to Registe and updated its usage accordingly. [1] [2]

UI Icon Imports:

• Added imports for new icons (TerminalIcon, XIcon) used in the terminal and header controls. [1] [2]