Aligned and switchout icons for expand and collapse

[heejung-hong]

Fixes #1798

What changes did you make?

• Aligned the expand and collapse icon to the text.
• Switched out the expand all, collapse all, expand, and collapse button to match the design guide.

Why did you make the changes (we will use this info to test)?

• Incorrect icons were switched out to the correct icons.

Issue-Specific User Account

[email protected] account was used for testing.

Screenshots of Proposed Changes Of The Website (if any, please do not screen shot code changes)

Visuals before changes are applied

Visuals after changes are applied