add help menu item to open telegram support

src/main/java/com/sparrowwallet/sparrow/AppController.java

@@ -426,6 +426,10 @@ public class AppController implements Initializable {
         }
     }
 
+    public void openSupport(ActionEvent event) {
+        AppServices.get().getApplication().getHostServices().showDocument("https://sparrowwallet.com/opensupport");
+    }
+
     public void submitBugReport(ActionEvent event) {
         AppServices.get().getApplication().getHostServices().showDocument("https://sparrowwallet.com/submitbugreport");
     }

src/main/java/com/sparrowwallet/sparrow/control/EntryCell.java

@@ -385,7 +385,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> {
                     amount = String.format("%.2f", (double)vSizefromTip / 1000) + " kvB";
                 }
 
-                tooltip += "\nConfirms in: ±" + blocksFromTip + " block" + (blocksFromTip > 1 ? "s" : "") + " (" + amount + " from tip)";
+                tooltip += "\nConfirms in: " + (blocksFromTip > 1 ? blocksFromTip + "+ blocks" : "1 block") + " (" + amount + " from tip)";
             }
 
             if(feeRate != null) {

src/main/resources/com/sparrowwallet/sparrow/app.fxml

@@ -125,6 +125,7 @@
                     <MenuItem mnemonicParsing="false" text="Show Introduction" onAction="#showIntroduction"/>
                     <MenuItem mnemonicParsing="false" text="Show Online Documentation" onAction="#showDocumentation"/>
                     <MenuItem mnemonicParsing="false" text="Show Log File" onAction="#showLogFile"/>
+                    <MenuItem mnemonicParsing="false" text="Get Support" onAction="#openSupport"/>
                     <MenuItem mnemonicParsing="false" text="Submit Bug Report" onAction="#submitBugReport"/>
                     <MenuItem styleClass="osxHide" mnemonicParsing="false" text="About Sparrow" onAction="#showAbout"/>
                 </Menu>