feat: use shared Tribes gettext

Use tgettext for shared sign-in UI copy.

lib/aether_web/live/timeline_live.ex

@@ -10,6 +10,8 @@ defmodule TribeOne.TribesPlugin.AetherWeb.TimelineLive do
   alias Tribes.Plugin.Services.Routes
   alias Tribes.Scope
 
+  import Tribes.Plugin.Gettext
+
   @impl true
   def mount(_params, _session, socket) do
     feed = load_feed()
@@ -173,7 +175,7 @@ defmodule TribeOne.TribesPlugin.AetherWeb.TimelineLive do
           </form>
         <% else %>
           <div class="rounded-box border border-dashed border-base-300 bg-base-100 p-6 text-center text-sm text-base-content/70">
-            Sign in to publish notes from your local identity.
+            {tgettext("Sign in")} to publish notes from your local identity.
           </div>
         <% end %>