fix(build): use base64 for inline SVG if it contains both single and double quotes

[chaejunlee]

Description

fixes #15257

After series of experimentation, just escaping single-quote with encoded strings doesn't work (i.e. ' -> %27). I suspect that after HTML URL Decoding, it is again treated as single-quote, causing error again. So I tried to solve it by detecting attribute values with inner single-quote and changing the double-quote to %22. Then I changed the single-quote to %27.

In other words, normal attributes like "......" will be changed to '......'. Attributes like "...'...''..." will be changed to %22...%27...%27%27...%22. %22...%27...%27%27...%22 will be decoded and work as "...'...''...".

Added a test as well.

This problem happens because the svg is being inlined.

However, it looks like just setting assetsInlineLimit: 0 makes the svgs to be imported which makes the problem go away.

export default defineConfig({
  build: {
    assetsInlineLimit: 0,
  },
})

Additional context

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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• Read the Contributing Guidelines, especially the Pull Request Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Update the corresponding documentation if needed.
• Ideally, include relevant tests that fail without this PR but pass with it.

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[chaejunlee]

I am getting this error on node-18, ubuntu.

I am not sure if this is because of my fix or this ci is being flaky.

[patak-dev]

@chaejunlee that is flaky test, sorry about that. You can ignore it.

[chaejunlee]

The ci is passing now but I had this error at the 7ca9ce3 .

If these are not one of the flaky ci tests, I'll look into fixing them.

[chaejunlee]

Because my fix kept failing on the ci, I thought my branch was behind the updates. Out of habit, I rebased and force pushed instead of merging upstream. Now the commit log looks a little weird. I should've merged and will stick to that from next time.

[sapphi-red]

Thanks!