Consider lower case for options

### Expected Behaviour
I haven't checked _every_ sample, but I noticed in the 07_editPhoto.js sample, options are uppercased:

```
const options = {
Exposure: 0.50,
Contrast: 10,
WhiteBalance: "Auto"
}
```

Whereas in other samples, more traditional lowercase keys are used. While not a big deal at all, I'd consistently use lowercase.

Start with the 07_editPhoto.js sample and compare its option keys with the other samples in the repository. Identify the samples using uppercase option names, update them consistently to lowercase, and verify that the examples remain aligned with the API usage shown.

Written by the indexing model from the issue text.