Add the Discord community to the Learn menu

Every other pointer at the community lives in an error path or a doc, so
there was no way to reach it from the menu. Prefer the Discord app when
it is installed, and fall back to the invite in a browser when it is not.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

bin/omarchy-launch-discord-community

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# omarchy:summary=Open the Omarchy Discord community in the Discord app or a browser.
+
+invite="https://discord.gg/tXFUdasqhY"
+
+if omarchy-cmd-present discord; then
+  exec setsid uwsm-app -- discord --url -- "discord://-/invite/${invite##*/}"
+else
+  exec omarchy-launch-webapp "$invite"
+fi

default/omarchy/omarchy-menu.jsonc

@@ -45,6 +45,7 @@
   "learn.bash": {"icon":"󱆃","label":"Bash","action":"omarchy-launch-webapp 'https://devhints.io/bash'"},
   "learn.tmux-keybindings": {"icon":"","label":"Tmux","action":"omarchy-menu-tmux-keybindings"},
   "learn.herdr-keybindings": {"icon":"","label":"Herdr","action":"omarchy-menu-herdr-keybindings"},
+  "learn.community": {"icon":"󰙯","label":"Community","action":"omarchy-launch-discord-community"},
 
   // Trigger
   "trigger.emoji": {"icon":"","label":"Emoji","aliases":["emoji","emojis"],"action":"omarchy-menu-emoji"},