Fix hook name and permission

Author: LyzardKing

snap/hooks/connect-plug-jabfox-integration

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if [ ! -d /var/lib/snapd/hostfs/usr/lib/mozilla/native-messaging-hosts ]; then
+    echo "Missing directory, create it manually then try again:"
+    echo "sudo mkdir -p /usr/lib/mozilla/native-messaging-hosts"
+    exit 1
+fi
+
+cp $SNAP/lib/org.jabref.jabref.json /var/lib/snapd/hostfs/usr/lib/mozilla/native-messaging-hosts/org.jabref.jabref.json

snap/hooks/jabfox-interface

@@ -15,13 +15,10 @@ architectures:
 plugs:
   jabfox-integration:
     interface: system-files
+    read:
+      - /var/lib/snapd/hostfs/usr/lib/mozilla/native-messaging-hosts
     write:
-    - /var/lib/snapd/hostfs/usr/lib/mozilla/native-messaging-hosts/org.jabref.jabref.json
-
-hooks:
-  connect-plug-system-files:
-    plugs:
-      - jabfox-integration
+      - /var/lib/snapd/hostfs/usr/lib/mozilla/native-messaging-hosts/org.jabref.jabref.json
 
 apps:
   jabref:
@@ -42,9 +39,9 @@ apps:
 parts:
   jabref:
     plugin: dump
-    # source: build/distribution/JabRef-portable_linux.tar.gz
+    source: build/distribution/JabRef-portable_linux.tar.gz
     # Use this source for debug purposes:
-    source: https://builds.jabref.org/master/JabRef-portable_linux.tar.gz
+    # source: https://builds.jabref.org/master/JabRef-portable_linux.tar.gz
     stage-packages:
       - x11-utils
     override-build: |