[AI] Restore @actual-app/web no-restricted-imports rule and fix stacked disable comments

Keep the existing no-restricted-imports rule for @actual-app/web in loot-core
as-is alongside the new no-cross-package-imports rule. Fix the stacked
oxlint-disable-next-line comments in desktop-electron/e2e/onboarding.test.ts
by combining them into a single line so both suppressions apply correctly.

https://claude.ai/code/session_01XjmtRs1P9Rg7FNJAYVcaZJ

.oxlintrc.json

@@ -351,11 +351,14 @@
           {
             "group": ["**/style/themes/*"],
             "message": "Please do not import theme files directly"
+          },
+          {
+            "group": ["@actual-app/web/**/*"],
+            "message": "Please do not import `@actual-app/web` in `loot-core`"
           }
         ]
       }
     ],
-    "actual/no-cross-package-imports": "error",
     "eslint/no-useless-constructor": "error",
     "eslint/no-undef": "error",
     "eslint/no-unused-expressions": "error"

packages/desktop-electron/e2e/onboarding.test.ts

@@ -1,5 +1,4 @@
-// oxlint-disable-next-line eslint/no-restricted-imports -- fix me
-// oxlint-disable-next-line actual/no-cross-package-imports -- fix me
+// oxlint-disable-next-line eslint/no-restricted-imports, actual/no-cross-package-imports -- fix me
 import { ConfigurationPage } from '@actual-app/web/e2e/page-models/configuration-page';
 import { expect } from '@playwright/test';