* [SettingsBackupController] Handle ActivityNotFoundException
When using `Intent.ACTION_CREATE_DOCUMENT` on SDK >= Lollipop there is no
guarantee that the ROM supports the built in file picker such as MIUI
* [SettingsBackupController] Add import for ActivityNotFoundException
* Add additional handlers to Android document intents
* Requested review changes
Move `try {`s to top of block
Replace version numbers with `Build.VERSION_CODES.LOLLIPOP`
Break out custom file picker intent to Context extention `Context.getFilePicker`
Rename `val i` to `val intent` to be more clear with variable names
* Add version check to custom file picker after exception