App Crash: Pressing the crop button makes the app crash

[Saransh-cpp]

Using the crop feature makes the app crash both on my emulator and my physical device. The cause for this is some missing lines in AndroidManifest.xml.

After adding the code, the app works perfect but if I initially choose to crop, but then go back from the crop screen without cropping the image, it gives me an error saying the imagefile is null. This is solved by giving a minor tweek to cropimage function.

Edit: I have made the crop screen consistent with the present theme, I'll open a PR.