Updates to the Xpath Code

[CarsonDavis]

Description

known bugs

• user is made to wait, please wait is shown to the user
• affected urls

needs

• Add a link to the titles-and-errors/ page at the top of the collection
• give a collection filter on the page
• correctly show the affected urls
• need a way to allow putting punctuation after an xpath, such as a colon, without a delimiting space

optional

• link to a filtered view of the page, when clicking on a specific title rule
• link to a pre-filtered view when coming from a collection

[efoshee]

Something I've noticed is when you delete a title pattern with an xpath from the Title Patterns section, it still shows in the New Title field