docs: clean up README files by removing trailing whitespace

- Removed unnecessary trailing whitespace from the README files for the `languages`, `login`, and `user` commands to improve formatting and maintain consistency across documentation.
- Ensured that all files end with a newline for better compatibility with various text editors.

Author: alvarosabu

src/commands/languages/README.md

@@ -97,4 +97,4 @@ Where:
 - The space ID is required
 - The command will create the necessary directories if they don't exist
 - The generated file follows the Storyblok languages schema
-- The file can be used for version control or backup purposes
+- The file can be used for version control or backup purposes

src/commands/login/README.md

@@ -54,4 +54,3 @@ storyblok login --token PERSONAL_ACCESS_TOKEN --region us
 - `us` - United States
 - `cn` - China
 - `au` - Australia
-

src/commands/user/README.md

@@ -34,4 +34,4 @@ Hi John Doe, you are currently logged in with john@example.com on eu region
 ## Notes
 
 - You must be logged in to use this command
-- The command uses your stored authentication token 
+- The command uses your stored authentication token