Issue 156 revamp the support ticket index page

[goromlagche]

Resolves #156

Description

• Include summary of change and what issue is fixed, including relevant motivation and context. [x] Headers on page match the header names in the mockup (in the right order) [x] Correct data shows up for each column [x] Standard sorting (follow conventions of Volunteers page) are added to the "Requested By", "Date Created", "Student" (sort on last name), "Staff Contact" (sort on last name), and "Type" . If some sorting seems too hard to get done in this deliverable, it can be moved into another issue. [x] Nav item STAYS "Tickets", but page title is updated to "Support Tickets"

• Explain the need for any added dependencies for this change. (gems, js libraries, etc.) No new dependencies.

• How haver you tested this? Added more specs for tickets_table_reflex_spec

• Anything else we should know about?

Type of change

• New feature (non-breaking change which adds functionality)

Screenshots

[garettarrowood]

Thank you for this contribution!