[6.1] Fix workflow graph strings and assets

[Vikash-Kumar-23]

Pull Request resolves #47224

• I read the Generative AI policy and my contribution is either not created with the help of AI or is compatible with the policy and GNU/GPL 2 or later.

Summary of Changes

Testing Instructions

Install Joomla 6.1-dev.

Go to Content -> Articles -> Options.

Set Enable Workflows to No.

Open any article for editing.

View the page source (Ctrl+U) and search for workflow-graph.

Result: No assets or strings should be found.

Return to Options and set Enable Workflows to Yes.

Refresh the article edit page and view source again.

Result: workflow-graph-client assets should now be present, confirming the feature still works when enabled.

Actual result BEFORE applying this Pull Request

Even if workflow_enabled is off :

Expected result AFTER applying this Pull Request

if workflow_enabled is off:

if workflow_enabled is on:

Link to documentations

Please select:

• Documentation link for guide.joomla.org:

• No documentation changes for guide.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[richard67]

@Vikash-Kumar-23 When GitHub shows that the branch is not up to date, it does not need to use the branch update button every time. It is only a problem if there are conflicts shown, which is not the case here. SO no need to use the branch update button all the time.