Move MinDiskFree out of Folder

Author: Catfriend1

app/src/main/java/com/nutomic/syncthingandroid/model/Folder.java

@@ -25,7 +25,7 @@ public class Folder {
     public int rescanIntervalS = 3600;
     public boolean ignorePerms = true;
     public boolean autoNormalize = true;
-    public MinDiskFree minDiskFree;
+    public static MinDiskFree minDiskFree;
     public Versioning versioning;
     public int copiers = 0;
     public int pullerMaxPendingKiB;
@@ -50,11 +50,6 @@ public static class Versioning implements Serializable {
         public Map<String, String> params = new HashMap<>();
     }
 
-    public static class MinDiskFree {
-        public float value;
-        public String unit;
-    }
-
     public void addDevice(final Device device) {
         Device d = new Device();
         d.deviceID = device.deviceID;

app/src/main/java/com/nutomic/syncthingandroid/model/MinDiskFree.java

@@ -0,0 +1,6 @@
+package com.nutomic.syncthingandroid.model;
+
+public class MinDiskFree {
+    public float value;
+    public String unit;
+}