chore: improve issue templates

[Shinigami92]

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• 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).
• Ideally, include relevant tests that fail without this PR but pass with it.

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

---

Description

This improves the issue templates to improve readability while triaging issues as a reviewer
Also users get provided with a bit more better hints and boilerplate texts are hidden by default in comments so they are not visible when the contributor posts the issue.

Additional context

Reviewer focus:

• Inclusive wording
• Spell checking
• Improvements for sentences

Reviewers can also have a look into the rendered markdown here:
https://github.com/Shinigami92/vite/blob/issue-templates/.github/ISSUE_TEMPLATE/bug_report.md
https://github.com/Shinigami92/vite/blob/issue-templates/.github/ISSUE_TEMPLATE/feature_request.md

https://discord.com/channels/804011606160703521/823110545266835456/823551400596209735

[Shinigami92]

ideas:

1. We could add some labels like needs triage that could be auto-assigned to feature request (done ✔️)
2. We could swap checkbox sections with description(+further) so embedded previews in e.g. discord or twitter show the description first instead of the always-same-boilerplate section (done ✔️)

[GrygrFlzr]

The ⚠️ emoji really draws attention to the warning, versus the newly commented out version. Maybe add that back in?

[Shinigami92]

As the same with #2645 (comment), the text is only visible in the draft view of the issue and shown in the comment, therefore it is not rendered as an icon/emoji but an unicode symbol.

Is there maybe another way of drawing attention?

Maybe we could try <!-- !!! IMPORTANT !!! Please do not ignore this template. If you do, your issue will be closed immediately. -->

[GrygrFlzr]

Consider adding:

• The output of npx envinfo --system --npmPackages vite,@vitejs/plugin-vue --binaries --browsers

Which produces output like this:

  System:
    OS: Windows 10 10.0.19042
    CPU: (16) x64 AMD Ryzen 7 3700X 8-Core Processor
    Memory: 14.19 GB / 31.95 GB
  Binaries:
    Node: 14.16.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.10 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 7.6.1 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 89.0.4389.90
    Edge: Spartan (44.19041.423.0), Chromium (89.0.774.54)
    Internet Explorer: 11.0.19041.1
  npmPackages:
    vite: ^2.1.2 => 2.1.2

Are there any other packages we want to check the version of?

[patak-dev]

This looks great, we could add that as a recommendation but I think nobody will do it if it is not required. I would really like this is required, but maybe it is too much. Let's add it with a strong word to try to push people that way at least

[Shinigami92]

The man himself approved a PR from me 🥳