Start webview in overview mode

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

@@ -73,6 +73,7 @@ public class FragmentWebView extends FragmentEx {
         WebSettings settings = webview.getSettings();
         settings.setJavaScriptEnabled(true);
         settings.setUseWideViewPort(true);
+        settings.setLoadWithOverviewMode(true);
         settings.setBuiltInZoomControls(true);
         settings.setDisplayZoomControls(false);
         settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);