[UX] update docs and minors for dashboard

[DanielZhangQD]

• Update docs for dashboard
• Fix hover effect for sky clusters
• Add dashboard URL to the output of sky api info
• Improve dashboard for mobile case
• Update favicon
• Do not fetch logs when the managed job is recovering

Tested (run the relevant ones):

• Code formatting: install pre-commit (auto-check on commit) or bash format.sh
• Any manual or new tests for this PR (please specify below)
• All smoke tests: /smoke-test (CI) or pytest tests/test_smoke.py (local)
• Relevant individual tests: /smoke-test -k test_name (CI) or pytest tests/test_smoke.py::test_name (local)
• Backward compatibility: /quicktest-core (CI) or pytest tests/smoke_tests/test_backward_compat.py (local)

[Michaelvll]

We need to show the dashboard URL when running sky api info or sky api start when a API server already exists.

[DanielZhangQD]

We need to show the dashboard URL when running sky api info or sky api start when a API server already exists.

sky api info already supports this, and I will check sky api start.

[concretevitamin]

User story: I tried to type sky dashboard and sky ui but failed. We should discuss adding one (open().

[DanielZhangQD]

Hi @Michaelvll @concretevitamin @romilbhardwaj, comments addressed, PTAL again. Thanks!

[DanielZhangQD]

Here is the job detail page in the recovering status:

Please note that if we are already in this page when the job is running, and when it changes to recovering status, we need to click the refresh button on the heading bar to trigger the waiting for the job to recover hint because refreshing the log only will not re-fetch the job detail data to get the latest job status.

[Michaelvll]

Thanks @DanielZhangQD! It looks mostly good to me. Just that we can improve the screenshot for the dashboard.

[DanielZhangQD]

Hi @Michaelvll Screenshots have been updated, PTAL again. Thanks!