subpath hosting: fix top-frame redirect in new tab (via wabac.js 2.10.1), fixes #82

loading: fix multi-wacz support (was disabled in wabac.js, fixed in 2.10.1)
bump to 2.5.8

package.json

@@ -9,7 +9,7 @@
   "license": "AGPL-3.0-or-later",
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.15.4",
-    "@webrecorder/wabac": "^2.10.0",
+    "@webrecorder/wabac": "github:webrecorder/wabac.js",
     "bulma": "^0.9.3",
     "electron-log": "^4.4.1",
     "electron-updater": "^4.3.9",