chore: change join community icon

src/main/frontend/components/header.cljs

@@ -175,7 +175,7 @@
         :options {:href "https://discuss.logseq.com"
                   :title (t :discourse-title)
                   :target "_blank"}
-        :icon (ui/icon "brand-discord")}]  ;; TODO we need a discourse brand
+        :icon (ui/icon "message-circle")}]
       (concat page-menu-and-hr)
       (remove nil?))
      {})))

src/main/frontend/components/onboarding.cljs

@@ -14,7 +14,7 @@
   [:div.help.cp__sidebar-help-docs
    (let [discourse-with-icon [:div.flex-row.inline-flex.items-center
                             [:span.mr-1 (t :help/forum-community)]
-                            (ui/icon "brand-discord" {:style {:font-size 20}})] ;; TODO we need a discourse brand
+                            (ui/icon "message-circle" {:style {:font-size 20}})]
          list
          [{:title "Usage"
            :children [[[:a