tweaked edit mode titles

ui/src/components/calendar/CreateCalendarEvent.vue

@@ -152,7 +152,7 @@ const formRef = ref(null);
         <Dialog v-model:open="dialogOpen">
             <DialogContent class="sm:max-w-[520px]">
                 <DialogHeader>
-                    <DialogTitle>Create Event</DialogTitle>
+                    <DialogTitle>{{ dialogMode == "edit" ? 'Edit Event' : 'Create Event' }}</DialogTitle>
                     <DialogDescription></DialogDescription>
                 </DialogHeader>
 
@@ -267,7 +267,7 @@ const formRef = ref(null);
                 </form>
 
                 <DialogFooter>
-                    <Button type="submit" form="dialogForm">Create</Button>
+                    <Button type="submit" form="dialogForm">{{ dialogMode == "edit" ? 'Update' : 'Create' }}</Button>
                 </DialogFooter>
             </DialogContent>
         </Dialog>