exclude all files for backup

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

res/xml/backup_config.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<full-backup-content>
-    <exclude domain="sharedpref" path="evernote_jobs.xml" />
-    <exclude domain="database" path="evernote_jobs.db" />
-</full-backup-content>

src/main/res/xml/backup_config.xml

@@ -2,4 +2,7 @@
 <full-backup-content>
     <exclude domain="sharedpref" path="evernote_jobs.xml" />
     <exclude domain="database" path="evernote_jobs.db" />
+    <exclude
+        domain="file"
+        path="." />
 </full-backup-content>