feat(app): show skill/mcp badges for slash commands

Display 'skill' or 'mcp' badge instead of 'custom' for slash commands
based on their source type. This provides better clarity to users about
where each command comes from.

packages/app/src/i18n/br.ts

@@ -210,6 +210,8 @@ export const dict = {
   "prompt.popover.emptyCommands": "Nenhum comando correspondente",
   "prompt.dropzone.label": "Solte imagens ou PDFs aqui",
   "prompt.slash.badge.custom": "personalizado",
+  "prompt.slash.badge.skill": "skill",
+  "prompt.slash.badge.mcp": "mcp",
   "prompt.context.active": "ativo",
   "prompt.context.includeActiveFile": "Incluir arquivo ativo",
   "prompt.context.removeActiveFile": "Remover arquivo ativo do contexto",