Fix incorrect start workspace url

[mustard-mh]

Description

Fix incorrect start workspace url, working for both case

workspace url	dashboard url

Summary generated by Copilot

🤖 Generated by Copilot at 852de59

Refactor GitpodHostUrl class and fix start URL bug. This pull request simplifies the URL manipulation logic in the GitpodHostUrl class and fixes a bug that caused the start URL to include the workspace ID twice in the urls.ts module.

Related Issue(s)

Fixes #

How to test

Documentation

Preview status

Gitpod was successfully deployed to your preview environment.

• 🏷️ Name - hw-fix-inc545912bf38
• 🔗 URL - hw-fix-inc545912bf38.preview.gitpod-dev.com/workspaces.
• 📚 Documentation - See our internal documentation for information on how to interact with your preview environment.
• 📦 Version - hw-fix-incorrect-redirect-url-gha.18636
• 🗒️ Logs - GCP Logs Explorer

Build Options

Build

• /werft with-werft
  Run the build with werft instead of GHA
• leeway-no-cache
• /werft no-test
  Run Leeway with --dont-test

Publish

• /werft publish-to-npm
• /werft publish-to-jb-marketplace

Installer

• analytics=segment
• with-dedicated-emulation
• workspace-feature-flags
  Add desired feature flags to the end of the line above, space separated

Preview Environment / Integration Tests

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-gce-vm
  If enabled this will create the environment on GCE infra
• with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh. If enabled, with-preview and with-large-vm will be enabled.
• with-monitoring

/hold

[akosyakov]

I did not try, but change look sensible.