Resolve "Style View Items, Add/Edit Items UI"

Description

• Added a global stylesheet.
• Added UI support for searching, sorting, and filtering list items

Issue

#54 (closed)

Feature

• Searching, filtering, and sorting can be applied in any combination the user desires

Tophatting

Describe the steps to test your changes.

Expected current behavior

What should you see or expect when you test this feature?

Changes

• Created Heading class for the "View All Tasks" and "Today's Items" pages, which holds the page title as well as the implementations for searching, sorting, and filtering UI elements

Screenshots

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Design Patterns

List any design patterns used to accomplish this task

Deviations

Were there any deviations from the original design or architecture plan. If yes, what were they ?

Additional

• Unit test written
• Meets requirements
• Cross-browser tested
• Added/updated documentation as needed
• Camel case style used

Closes #54 (closed)