[ContributorsScreen] Display the total number of persons in ContributorsScreen

[raseln]

Issue

• close Display the total number of persons in ContributorsScreen #903

Overview (Required)

• Implement animated total number of contributors UI in ContributorsScreen of Compose
• Implement animated total number of contributors UI in ContributorsScreen of SwiftUI for both representation
• Write Robo test of Compose UI item

Links

• Figma

Movie (Optional)

BeforeAndroid	AfterAndroid
BeforeAndroid.mp4	AfterAndroid.mp4

BeforeiOS	AfteriOS
BeforeiOS.mov	AfteriOS.mov

[github-actions]

Snapshot diff report

File name	Image
TimetableScreenTest[ TimetableScreen - wh en server is down - it should show error message]_compare.pn g
TimetableScreenTest[ TimetableScreen - wh en server is operati onal - scroll timeta ble - it should firs t session is not dis played]_compare.png
SponsorsScreenTest[S ponsorsScreen - when server is down - wh en launch - it shoul d does not show spon sors and show snackb ar]_compare.png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when la unch - it should sho w contributors total count]_compare.png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when la unch - it should sho w first and second c ontributors]_compare .png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when la unch - when scroll t o index 10 - it shou ld show contributors ]_compare.png

[takahirom]

Thank you for working on iOS as well; it seems great.

[shin-usu]

iOS implementation looks good to me!