cli: address review feedback from freben

Fix whitespace alignment in CLI command summary, improve export command
description to clarify it operates from an app context, and update the
corresponding docs section.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

docs/tooling/cli/03-commands.md

@@ -24,7 +24,7 @@ repo [command]                                 Command that run across an entire
 package [command]                              Lifecycle scripts for individual packages
 migrate [command]                              Migration utilities
 versions:bump [options]                        Bump Backstage packages to the latest versions
-translations [command]                          Translation message management
+translations [command]                         Translation message management
 clean                                          Delete cache directories [DEPRECATED]
 build-workspace <workspace-dir> [packages...]  Builds a temporary dist workspace from the provided
                                                 packages
@@ -431,8 +431,8 @@ Usage: backstage-cli create-github-app <github-org>
 
 ## translations export
 
-Export translation messages from all frontend plugin dependencies of the current
-package. This command must be run from within a package directory (e.g.
+Export translation messages from an app and all of its frontend plugins to JSON
+files. This command must be run from within a package directory (e.g.
 `packages/app`), not from the repository root.
 
 The command discovers all `TranslationRef` definitions in the dependency tree,