Add e2e tests for Interactive Web Tour

[Beking0912]

Student Name: Biqing (Gloria) Su
Mentors: Jeremy R. Easton-Marks, Ryan Fu

Important 👈

• The e2e tests added in this PR can only be run correctly after the PR Add show_web_tours for Interactive Web Tour cbioportal#10333 merge.
• This PR can only be merged once PR #4687 has been merged.
• This PR is based on a branch from gsoc/interactive-tour.
• Before merging this PR, it needs to be rebased onto the master branch.
• Open to feedback!

Description

This pull request introduces comprehensive end-to-end testing code for interactive tours, covering the following scenarios:

• Virtual Study Tour - Logged-in user (Non-Logged-in user behavior is similar)
• Group Comparison Tour

Related Issue

• Add show_web_tours for Interactive Web Tour: Add show_web_tours for Interactive Web Tour cbioportal#10333
• Interactive Web Tour code: Add Interactive Web Tour for Virtual Studies and Group Comparison #4687
• GSoC project description: Interactive web tour GSoC#86

Example Testcase

These tests simulate user interactions to navigate through all steps.
Below is an example showcasing the aspects validated by the test case:

1. The tour should be at step = 4.
2. There should be a tour modal
3. On the modal, the title of the content should be Select samples
4. On the modal, there should not be a Skill All button and a Next Step button
5. There should be the Mutated Genes table #mutated-genes-table
6. Select samples
7. On the modal, there should be a Skill All button and a Next Step button
8. Click on the Next Step button, the tour should go to the next step

Documentation

For detailed test cases, refer to the detailed documentation.