fix: pin foliate-js 94bb384 — PDF selection drags no longer blank the page

The fx renderer's gesture classifier only checked whether the touch
started on a .textLayer span; Chromium's long-press selects the
nearest word even when the finger landed between spans, so the
classifier saw a non-selectable target and classified the drag as
swipe/pan — preventDefault on the iframe's touchmove then cancelled
the native selection extension mid-drag and could blank the PDF
canvas. If any frame already has a non-collapsed selection, the
drag is now classified as native.

package.json

@@ -12,7 +12,7 @@
     "dev": "npm run build:ts:dev && npm run build:css"
   },
   "dependencies": {
-    "@bookhoard/foliate-js": "git+https://git.linuxhg.com/Bookhoard/foliate-js.git#8a20399",
+    "@bookhoard/foliate-js": "git+https://git.linuxhg.com/Bookhoard/foliate-js.git#94bb384",
     "alpinejs": "^3.15.8",
     "chart.js": "^4.5.1",
     "highlight.js": "^11.11.1",