Modules batch modals changes

[dgrammatiko]

This is complimentary to #7000 and #7003

What is changed:

1. modals are properly rendered through the API
2. overrides have only the actual content (no hard coded structure)
3. obey to ACL
4. modal is rendered only if items exist
5. process button class from primary to success (color change from blue to green)

testing

You need to test the batch functionality for this url: administrator/index.php?option=com_modules&view=modules

[joomla-cms-bot]

Please add more information to your issue. Without test instructions and/or any description we will close this issue soon. Thanks.
This is an automated message from the J!Tracker Application.

[brianteeman]

When this is merged I will look at clarifying the text etc to remove confusion on what is required

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_{This comment was created with the J!Tracker Application at issues.joomla.org/joomla-cms/7648.}

[brianteeman]

Module Batch processing still works as intended

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_{This comment was created with the J!Tracker Application at issues.joomla.org/joomla-cms/7648.}

[zero-24]

Batch still works. Thanks --> RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/joomla-cms/7648.}

[Kubik-Rubik]

Looks good, thank you @dgt41. I will merge it!

@brianteeman Could you please clarify the text? Thank you!