Bills with long summary have a read more toggle

[BenKellySoftware]

Only displays heading for 'about this bill' section if summary available

Problem:

• The 'about this bill' section can often be long and take up too much screen real-estate
• A bill doesn't always have an about section but the header always displays

Solution:

• Found a 'read more' widget and implemented for the about section
• Included a check to only include the about section if the text is available