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/common-page.ts

@@ -71,19 +71,16 @@ export function initGlobalDropdown() {
         action: 'hide',
         onShow() {
           // hide associated tooltip while dropdown is open
-          this._tippy?.hide();
-          this._tippy?.disable();
+          el._tippy?.hide();
+          el._tippy?.disable();
         },
         onHide() {
-          this._tippy?.enable();
-          // eslint-disable-next-line unicorn/no-this-assignment
-          const elDropdown = this;
+          el._tippy?.enable();
 
-          // hide all tippy elements of items after a while. eg: use Enter to click "Copy Link" in the Issue Context Menu
+          // hide all tippy elements of items after a while, in case some items have tooltip popup.
           setTimeout(() => {
-            const $dropdown = fomanticQuery(elDropdown);
             if ($dropdown.dropdown('is hidden')) {
-              queryElems(elDropdown, '.menu > .item', (el) => el._tippy?.hide());
+              queryElems(el, '.menu > .item', (item) => item._tippy?.hide());
             }
           }, 2000);
         },