Enable context actions on input fields, partly fix of #204

UI/Input/TextField.ts

@@ -130,7 +130,7 @@ export class TextField extends InputElement<string> {
                 self.enterPressed.setData(field.value);
             }
         });
-
+        
     }
 
     public SetCursorPosition(i: number) {

index.ts

@@ -143,6 +143,12 @@ if (layoutFromBase64.startsWith("http")) {
         .SetStyle("pointer-events: all;")
         .AttachTo("topleft-tools");
 }
+// Remove all context event listeners on mobile to prevent long presses
 window.addEventListener('contextmenu', (e) => { // Not compatible with IE < 9
+    
+    if(e.target["nodeName"] === "INPUT"){
+        return;
+    }
     e.preventDefault();
+    return false;
 }, false);