Update 26 Juli

- screen beberapa halaman about us (stretching gambar)
- screen manajemen konten (ADD dan EDIT) (informasi loading waktu upload
video)
Merge pull request #1 from iqbalprmana/master

Revisi 4 Agustus
Revisi 6 Agustus (Progress Upload Video)

Revisi 6 Agustus:
- ScreenManajemen2, ScreenManajemen3: tambah progress video
- beberapa perubahan kecil di About dan ScreenPP2, ScreenTechDev2
Merge pull request #1 from vikachew/master

update progress video