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/comp/EditorMarkdown.ts

@@ -13,7 +13,7 @@ export function replaceTextareaSelection(textarea: HTMLTextAreaElement, text: st
   textarea.focus();
   let success = false;
   try {
-    success = document.execCommand('insertText', false, text); // eslint-disable-line @typescript-eslint/no-deprecated
+    success = document.execCommand('insertText', false, text); // eslint-disable-line @typescript-eslint/no-deprecated -- no replacement keeps the undo history
   } catch {}
 
   // fall back to regular replacement

web_src/js/features/comp/LabelEdit.ts

@@ -1,6 +1,6 @@
 import {toggleElem} from '../../utils/dom.ts';
 import {showFomanticModal} from '../../modules/fomantic/modal.ts';
-import {submitFormFetchAction} from '../common-fetch-action.ts';
+import {submitFormFetchAction} from '../../modules/fetch-action.ts';
 
 function nameHasScope(name: string): boolean {
   return /.*[^/]\/[^/].*/.test(name);