chore: upgrade eslint plugins, remove eslint-plugin-github (#38046)

- Bump `eslint`, `typescript-eslint` and `eslint-plugin-unicorn` (to
v68), and configure the rules added in unicorn v66/v67/v68.
- Remove `eslint-plugin-github` and its workarounds (rules, type stub,
pnpm peer override, in-code `eslint-disable` comments); the rules worth
keeping are covered by `unicorn` equivalents.
- Apply the resulting fixes and autofixes across the JS codebase.

_Prepared with Claude (Opus 4.8)._

---------

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

tailwind.config.ts

@@ -90,7 +90,7 @@ export default {
       '8xl': '96px',
       '9xl': '128px',
       ...Object.fromEntries(Array.from({length: 100}, (_, i) => {
-        return [`${i}`, `${i === 0 ? '0' : `${i}px`}`];
+        return [String(i), i === 0 ? '0' : `${i}px`];
       })),
     },
     extend: {