Update JS dependencies and misc tweaks (#37064)

- Update all JS deps
- Regenerate SVGs
- Add new eslint rules from unicorn
- Update typescript config for 6.0, remove deprecated options in favor
of `strict` with disablements, remove implicit dom libs.
- Set vite log level during `watch-frontend` to `warn` to avoid
confusing URLs or HMR spam from the dev server to keep the log concise.
Overridable via `FRONTEND_DEV_LOG_LEVEL`.

Co-authored-by: Claude (Opus 4.6) <noreply@anthropic.com>

playwright.config.ts

@@ -1,5 +1,6 @@
 import {env} from 'node:process';
 import {defineConfig, devices} from '@playwright/test';
+
 const timeoutFactor = Number(env.GITEA_TEST_E2E_TIMEOUT_FACTOR) || 1;
 const timeout = 5000 * timeoutFactor;