Revert "Revert "Enable unzip by default""

This reverts commit a5eef36e47.

app/src/main/java/eu/faircode/email/FragmentOptionsDisplay.java

@@ -1448,7 +1448,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         swImagesPlaceholders.setChecked(prefs.getBoolean("image_placeholders", true));
         swImagesInline.setChecked(prefs.getBoolean("inline_images", false));
         swButtonExtra.setChecked(prefs.getBoolean("button_extra", false));
-        swUnzip.setChecked(prefs.getBoolean("unzip", false));
+        swUnzip.setChecked(prefs.getBoolean("unzip", true));
         swAttachmentsAlt.setChecked(prefs.getBoolean("attachments_alt", false));
         swThumbnails.setChecked(prefs.getBoolean("thumbnails", true));
 

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -3386,7 +3386,7 @@ public class MessageHelper {
 
                 else if (local.isCompressed()) {
                     SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-                    boolean unzip = prefs.getBoolean("unzip", false);
+                    boolean unzip = prefs.getBoolean("unzip", true);
 
                     if (unzip)
                         if (local.isGzip() && !local.isTarGzip())