feat: adding missing alt text

[CBID2]

Issue

Closes #463

Description

This PR adds alt text to the icons on pingcap's doc website, making it easier for people who use screen readers to navigate the site.

[vercel[bot]]

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Name	Status	Preview	Comments	Updated (UTC)
website-docs	❌ Failed (Inspect)			Jan 13, 2024 5:59am

[vercel[bot]]

@CBID2 is attempting to deploy a commit to the pingcap Team on Vercel.

A member of the Team first needs to authorize it.

[Yuiham]

The changes in the PR don't seem to solve the problem. Can you retry it the way I replied?

[CBID2]

The changes in the PR don't seem to solve the problem. Can you retry it the way I replied?

Sure @Yuiham! :) Can you also put the 2024-tidb-docs-dash label on my PR too? For some odd reason, it got removed.

[rpaik]

The changes in the PR don't seem to solve the problem. Can you retry it the way I replied?

Sure @Yuiham! :) Can you also put the 2024-tidb-docs-dash label on my PR too? For some odd reason, it got removed.

This was also discussed on Discord. The 2024-tidb-docs-dash label is not applicable for this PR.

[CBID2]

the way I replied

Done @Yuiham! :)

[Yuiham]

the way I replied

Done @Yuiham! :)

Thank you for your great contribution! But the docs git submodule commits in your branch need to be excluded from this PR. Otherwise, it will cause a doc site build error. Can you try to run the following git command once?

# Revert the submodule update commits
git revert --no-edit 00f3cf8...d450ed6

# Push reverting commits to remote
git push

[Yuiham]

LGTM for the rest

[CBID2]

LGTM for the rest

Done @Yuiham