Update to navigational and selection icons

[saramuseo]

There is a need to standardize icons used for navigation and selection, use the same icons other Greenstand UI is using so that users are not presented with multiple icons for the same purpose

Describe the solution you'd like
Choose icons from the Greenstand icon library, like arrows and check marks, that are for the most part universally used for navigation and selection instead of finger points.

Describe alternatives you've considered
Other style of arrows could be beneficial, but would like to reserve chevrons or even hand signs for testing opportunities and use more universal options first.

Additional context
Needs to meet accessibility and android app requirements regarding icon size, color contrast, etc.

[saramuseo]

Design Link in Figma: https://www.figma.com/design/l00v0mHBNw1WWzDl2scLWr/Treetracker-Android-UI?node-id=1-6&t=63A8oNsFYjqWUboc-1

This design is a quick fix for updating navigational and selection icons, the buttons themselves and color scheme to support visibility of buttons will be addressed in future tickets.

[Amritah9]

Reopening issue to track development effort for the design change.