refactor UserSelectForCourse

src/components/Dialogs/DialogComponents/UserSelectForCourse.vue

@@ -14,9 +14,14 @@
 
     <label
       class="text-left w-100 d-block text--white available-seats-label"
-      v-if="availableSeatsInCourse === 0"
+      v-if="availableSeatsInCourse === 0 && selectedMembers.length === 0"
       >This course is full. You won't be able to add any students.</label
     >
+    <label
+      class="text-left w-100 d-block text--white available-seats-label"
+      v-else-if="availableSeatsInCourse === 0 && selectedMembers.length > 0"
+      >After you add the selected users this course will be full.</label
+    >
     <label
       class="text-left w-100 d-block text--white available-seats-label"
       v-else-if="selectedMembers.length === 0"