build(deps): collapse jquery-mockjax's per-major jquery aliases

jquery-mockjax@3 declares four jquery peer aliases (jquery1, jquery2,
jquery3, jquery4) so it can self-test against every jQuery major. npm
auto-installs all four, dragging old jquery 1.x/2.x copies into
node_modules. Those copies are never loaded by our test suite —
mockjax's main bundle is jQuery-version-agnostic at runtime and just
uses whatever jQuery is globally available — but GitHub Dependabot
flags four open moderate XSS advisories against them.

Add an `overrides` entry that redirects each non-jquery3 alias to our
top-level jquery@^3.7.1, so npm installs one jquery (under three
aliases that all point at it) instead of four versioned jQueries.

Verified: full test suite still green (40/40), `npm audit` now reports
0 vulnerabilities.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: tkirda-bison

package-lock.json

@@ -47,6 +47,11 @@
   "peerDependencies": {
     "jquery": ">=3.0"
   },
+  "overrides": {
+    "jquery1": "npm:jquery@^3.7.1",
+    "jquery2": "npm:jquery@^3.7.1",
+    "jquery4": "npm:jquery@^3.7.1"
+  },
   "devDependencies": {
     "@eslint/js": "^9.39.4",
     "@types/jquery": "^3.5.32",