Updates based on client validation

[burceVM]

• Added initial donation amount for child and project sponsors
• Added description field for children in website and admin view
• Label changes in Editing 'Others' in Admin View
• Added a delete button for sponsors and donations (far right side)
• Added staff group photo to About Us page
• In Admin Newsletter View: Added text label: 'Please select multiple images in the pop-up'
• Added donate button to single project view
• Made 'Search By' dropdown more explicitly clickable

[rpineda26]

These are the changes made according to the requests of the client that they brought up during the live testing/demo of the web app.