Pull Request for Issue # .

Summary of Changes

• Refactor the fallback code for the url/session initial path handling

Testing Instructions

• test a url like (existing path) /administrator/index.php?option=com_media&path=local-images:/banners
• test a url like (not existing path) /administrator/index.php?option=com_media&path=local-none:/banners
• test a url like (not existing path) /administrator/index.php?option=com_media&path=local-none:/noooooo
• Open the browser console and edit the session value from something like: {"selectedDirectory":"local-images:/banners","showInfoBar":false,"listView":"grid","gridSize":"md","search":"","sortBy":"name","sortDirection":"asc"} to values matching the changes on the previous steps (eg "selectedDirectory":"local-none:/banners", "selectedDirectory":"local-none:/noooooo") and check if the media manager loads without an error
• Apply all possible combos between the url and the session storage

Actual result BEFORE applying this Pull Request

Expected result AFTER applying this Pull Request

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

@laoneo could you review this one?