Clarify "Delete" button in Toolbox - should say "Delete Workspace" to avoid confusion

[blink-so]

Problem

The "Delete" button in JetBrains Toolbox when managing Coder workspaces is confusing. Users may think it will only remove the IDE connection from Toolbox (similar to disconnecting), but it actually deletes the entire Coder workspace.

Expected Behavior

• The button should clearly indicate it will delete the workspace, not just remove the connection
• Consider renaming to "Delete Workspace" for clarity
• Match the VS Code extension UX which doesn't have this ambiguity

Current Impact

Users can accidentally delete their workspaces when they only intended to remove the IDE connection from Toolbox.

Suggested Solution

1. Rename the button from "Delete" to "Delete Workspace"
2. Consider adding a confirmation dialog that clearly states the workspace will be deleted
3. Potentially remove the delete button entirely from Toolbox to match VS Code UX

[fioan89]

Issue was misreported, it is now moved to coder/coder-jetbrains-toolbox#178