Removed now useless ignoreInvalidation and tweaked notification

frontend/src/components/CustomComponentForAPI.js

@@ -10,10 +10,6 @@ class CustomComponentForAPI extends Component {
   // mapping should be : props_key => other_props_that contains the attribute to use
   __apiAttr = null;
 
-  // prevent hard reset of module when rereading data
-  ignoreInvalidation = false;
-
-
   constructor(props) {
     super(props);
 
@@ -94,7 +90,7 @@ class CustomComponentForAPI extends Component {
    */
   propIsUsable(propName) {
     const prop = this.props[propName];
-    return (this.ignoreInvalidation === true || !prop.isInvalidated)
+    return (!prop.isInvalidated)
       && successActionsWithReads
         .filter(action => action in prop) // general handling of all types of API reducers
         .some(action => prop[action].readAt !== 0) // makes sure will consider all success actions

frontend/src/components/university/shared/Editor.js

@@ -314,7 +314,7 @@ class Editor extends Component {
   }
 
   notifySaveSuccessful(message) {
-    this.removeSavingNotification();
+    setTimeout(() => this.removeSavingNotification(), 1500); // add a little delay for smoothing
     this.props.enqueueSnackbar(message, { variant: "success", autoHideDuration: 5000 });
   }