Feature: Automatically search for HTML files when given a directory

[shaharkazaz]

Currently, when specifying a directory, users must manually append **/*.html to include all HTML files within that directory.

Proposed Improvement

Modify the functionality so that when a directory path is provided, **/*.html is automatically appended. This ensures that all HTML files within the specified directory (including subdirectories) are included without requiring manual input.

Expected Behavior

•	If a file path is provided (e.g., path/to/file.html), it remains unchanged.
•	If a directory path is provided (e.g., path/to/directory/), it is automatically transformed into path/to/directory/**/*.html.