topics are now correctly alphanumerically sorted with browsers localeCompre option "numeric: true"

front/src/store/index.js

@@ -253,14 +253,25 @@ export default createStore({
   },
 
   getters: {
+
     rules: state => state.rules,
-    sortedTopics: state => (
+
+    filteredTopics: state => (
       [...state.topics]
-        .sort((a, b) => a.title.localeCompare(b.title))
       .filter(t => (
         t.messages.length > 0 &&
         t.title != 'stream events'
       ))
+    ),
+
+    sortedTopics: (state, getters) => (
+      getters.filteredTopics
+      .sort((a,b) => 
+        a.title.localeCompare(b.title, undefined, { 
+          numeric     : true,
+          sensitivity : 'base'
+        })
+      )
     )
   }