GUI: added defaults to numberlineedits and fixed a typo

gui/src/aaregui/widgets/number_line_edit.py

@@ -36,6 +36,7 @@ class NumberLineEdit(QLineEdit):
         self.editingFinished.connect(self.on_editing_finished)
         self.setText(self.to_string(default))
         self.saved_value = default
+        self.initial_value = default
 
     def to_string(self, i: float) -> str:
         format_string = f"{{:.{self.decimal_count}f}}"
@@ -77,3 +78,10 @@ class NumberLineEdit(QLineEdit):
                 self.to_string(min_val), self.to_string(max_val)
             )
         )
+
+    def get_default(self) -> float:
+        return float(self.initial_value)
+
+    def reset_to_default(self):
+        # Force set to initial default
+        self.force_update_value(self.initial_value)