Add .zip extension to QIF exports no matter the export target

Now we are always Zipping QIF exports.

Author: rivaldi8

app/src/main/java/org/gnucash/android/ui/export/ExportFormFragment.java

@@ -502,12 +502,9 @@ private void selectExportFile() {
 		createIntent.setType("*/*").addCategory(Intent.CATEGORY_OPENABLE);
 		String bookName = BooksDbAdapter.getInstance().getActiveBookDisplayName();
 
+		String filename = Exporter.buildExportFilename(mExportFormat, bookName);
 		if (mExportFormat == ExportFormat.QIF) {
 			createIntent.setType("application/zip");
-		}
-
-		String filename = Exporter.buildExportFilename(mExportFormat, bookName);
-		if (mExportTarget == ExportParams.ExportTarget.URI && mExportFormat == ExportFormat.QIF){
 			filename += ".zip";
 		}