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-projects.ts

@@ -48,7 +48,7 @@ async function initRepoProjectSortable(): Promise<void> {
     handle: '.project-column-header',
     delayOnTouchOnly: true,
     delay: 500,
-    onSort: async () => { // eslint-disable-line @typescript-eslint/no-misused-promises
+    onSort: async () => { // eslint-disable-line @typescript-eslint/no-misused-promises -- Sortable ignores the returned promise, the body catches its own errors
       boardColumns = mainBoard.querySelectorAll<HTMLElement>('.project-column');
 
       const columnSorting = {
@@ -72,8 +72,8 @@ async function initRepoProjectSortable(): Promise<void> {
     const boardCardList = boardColumn.querySelector<HTMLElement>('.cards')!;
     createSortable(boardCardList, {
       group: 'shared',
-      onAdd: moveIssue, // eslint-disable-line @typescript-eslint/no-misused-promises
-      onUpdate: moveIssue, // eslint-disable-line @typescript-eslint/no-misused-promises
+      onAdd: moveIssue, // eslint-disable-line @typescript-eslint/no-misused-promises -- Sortable ignores the returned promise, moveIssue catches its own errors
+      onUpdate: moveIssue, // eslint-disable-line @typescript-eslint/no-misused-promises -- Sortable ignores the returned promise, moveIssue catches its own errors
       delayOnTouchOnly: true,
       delay: 500,
     });