Keep platforms together

src/freedombone-utils-android

                       echo '            {';
                       echo '              "type": "web",';
                       echo "              \"url\": \"$domain_name\"";
-                      echo '            }';
-                      echo '          ]';
-                      echo -n '        }'; } >> "$plinth_api"
+                      echo -n '            }'; } >> "$plinth_api"
                 fi
 
                 if [ "$MOBILE_APP_URL" ]; then
                     if [[ "$domain_name" != "0" && "$app_name" != 'matrix' ]]; then
                         echo ',' >> "$plinth_api"
+                    else
+                        { echo '        {';
+                          echo "          \"name\": \"${app_name}\",";
+                          echo "          \"platforms\": ["; } >> "$plinth_api"
                     fi
-                    { echo '        {';
-                      echo "          \"name\": \"${app_name}\",";
-                      echo "          \"platforms\": [";
-                      echo '            {';
+                    { echo '            {';
                       echo '              "type": "store",';
                       echo '              "os": "android",';
                       echo '              "store_name": "f-droid",';
                       echo "              \"url\": \"$MOBILE_APP_URL\"";
-                      echo '            }';
-                      echo '          ]';
-                      echo -n '        }'; } >> "$plinth_api"
+                      echo '            }'; } >> "$plinth_api"
                 else
                     echo '' >> "$plinth_api"
                 fi
 
-                { echo '      ]';
+                { echo '          ]';
+                  echo '        }';
+                  echo '      ]';
                   echo -n '    }'; } >> "$plinth_api"
 
                 android_ctr=$((android_ctr+1))