Fixing Expression and text not saving changes when having used the input character popup.

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/Setting/ExpressionEditor.qml

@@ -211,6 +211,7 @@ Item {
         onSelected: function(c) {
             editor.insert(editor.cursorPosition, c)
             insertPopup.close()
+            focus = false
             editor.focus = true
         }
     }

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/Setting/TextSetting.qml

@@ -155,6 +155,7 @@ Item {
         onSelected: function(c) {
             input.insert(input.cursorPosition, c)
             insertPopup.close()
+            focus = false
             input.focus = true
         }
     }