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/features/repo-diff.ts

@@ -11,7 +11,7 @@ import {createTippy} from '../modules/tippy.ts';
 import {invertFileFolding} from './file-fold.ts';
 import {parseDom} from '../utils.ts';
 import {registerGlobalEventFunc, registerGlobalInitFunc} from '../modules/observer.ts';
-import {performFetchActionTrigger} from './common-fetch-action.ts';
+import {performFetchActionTrigger} from '../modules/fetch-action.ts';
 import {initImageDiff} from './imagediff.ts';
 
 function initDiffFileViewToggle(el: HTMLElement) {
@@ -206,9 +206,7 @@ async function onLocationHashChange() {
 
   const targetElementId = currentHash.substring(1);
   while (currentHash === window.location.hash) {
-    // use getElementById to avoid querySelector throws an error when the hash is invalid
-    // eslint-disable-next-line unicorn/prefer-query-selector
-    const targetElement = document.getElementById(targetElementId);
+    const targetElement = document.querySelector<HTMLElement>(`#${CSS.escape(targetElementId)}`);
     if (targetElement) {
       // need to change hash to re-trigger ":target" CSS selector, let's manually scroll to it
       targetElement.scrollIntoView();