Add discord PTB for testing; move discord into apps

Additionally; this pull request *doesn't* pirate OneShot!
diff --git a/src/apps/personal/discord.nix b/src/apps/personal/discord.nix
new file mode 100644
index 0000000..73647b6
--- /dev/null
+++ b/src/apps/personal/discord.nix
@@ -0,0 +1,6 @@
+{ pkgs, ... }: {
+    home.packages = with pkgs; [
+        discord
+        discord-ptb
+    ];
+}