chore: update eslint and stylelint configs and re-sync modern-normalize (#38982)

- update the vendored `modern-normalize` to v3.0.1
- require descriptions for lint disables in TS and CSS, same as we
already have in Go.
- disable core rules covered by `regexp/*` and `unicorn/*`, and ones
that cannot fire
- stop applying vitest rules to the playwright files in `tests/e2e`
- enable 7 stylelint rules, mostly `no-unknown` and `no-invalid` checks
- drop 2 unnecessary vendor prefixes (safari v17+, chrome v120+)
- look up ids via `querySelector` with `CSS.escape` instead of
`getElementById`
- remove stale doc about `@ts-expect-error`, it's forbidden
- misc dev doc fixes

Every declaration that `modern-normalize` v3 removes was checked against
chromium, webkit and firefox defaults first. The `hr` color and the
`:-moz-focusring` outline are kept as documented deviations, dropping
those does change rendering.

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

web_src/js/webcomponents/overflow-menu.ts

@@ -236,9 +236,7 @@ window.customElements.define('overflow-menu', class extends HTMLElement {
     // check whether the mandatory `.overflow-menu-items` element is present initially which happens
     // with Vue which renders differently than browsers. If it's not there, like in the case of browser
     // template rendering, wait for its addition.
-    // The eslint rule is not sophisticated enough or aware of this problem, see
-    // https://github.com/43081j/eslint-plugin-wc/pull/130
-    const menuItemsEl = this.querySelector<HTMLElement>('.overflow-menu-items'); // eslint-disable-line wc/no-child-traversal-in-connectedcallback
+    const menuItemsEl = this.querySelector<HTMLElement>('.overflow-menu-items'); // eslint-disable-line wc/no-child-traversal-in-connectedcallback -- the observer below covers the case the rule warns about, see https://github.com/43081j/eslint-plugin-wc/pull/130
     if (menuItemsEl) {
       this.menuItemsEl = menuItemsEl;
       this.init();