Standardize optional params across repository.

As it stands, the project is utilizing 2 different ways to create an optional property:

1)
```ts
interface Props { name: string}

const Test = ({name: ''}: Props) {}
```

2)
```ts
interface Props { name?: string}

const Test = ({ name }: Props) {}
```

Subjective opinion aside, one should be swiftly decided on.