This PR flips the optionality of the `AutoUpdateSettingContent` to make
it a bit easier to work with.
#### Before
```rs
struct AutoUpdateSettingContent(Option<bool>);
type FileContent = AutoUpdateSettingContent;
```
#### After
```rs
struct AutoUpdateSettingContent(bool);
type FileContent = Option<AutoUpdateSettingContent>;
```
Release Notes:
- N/A