e2e: test NEO session launcher and imageList

[gahyuun]

This PR resolves #2657 issue

TL;DR

e2e test for NEO session creation and imageList

What changed?

Test:

• create and terminate a session without setting anything except the session name.
• rendering image list
• install image
• modify image resource limit
• manage apps

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[gahyuun]

It was difficult to me that the sessions created were not immediately reflected on the screen.

So I tried a few things

1. refresh ( use navigateTo) -> Not suitable for user scenario testing.
2. “Create session with session name e2e test -> Recreate session with session name e2e test. Check the failure statement that a session has already been created”
   I tried to run the test with the above scenario. But It isn't a good fit for user scenario testing either.
3. Increasing the waitForTimeout time

I thought option 3 works best and I applied that method

[yomybaby]

Instead of page.waitForTimeout(10000), we can use locator's wait. Please check my recent commit.

await expect(session).toBeVisible({timeout: 10000});

[gahyuun]

I check it. Create session returns a passed. But session test fails. Because the timeout (await page.waitForTimeout(5000);)was removed and the session termination was not immediately reflected on the screen.
So I think that Delete session test needs Timeout

[yomybaby]

Please check my comments and commits.

[yomybaby]

I pushed a commit please check it.
Now, LGTM! Thank you for your contribution.

[graphite-app]

Merge activity

• Aug 30, 4:30 AM EDT: yomybaby added this pull request to the Graphite merge queue.
• Aug 30, 4:32 AM EDT: yomybaby merged this pull request with the Graphite merge queue.