BUG - Parameter required on nullable types

## **Description of the issue**

[Nullable datatypes](https://github.com/Azure/bicep/pull/9454) in bicep compiles to json with the nullable-property as true, but the docs will say the parameter is required and not optional. The module should be report optional if property defaultValue is not empty or if this property nullable is true.

### **To reproduce**

Bicep code like this:
```bicep
@description('Optional. List of application security groups to deploy.')
param applicationSecurityGroups string[]?
```

Builds to json like this:
```json
"applicationSecurityGroups": {
"type": "array",
"items": {
"type": "string"
},
"nullable": true,
"metadata": {
"description": "Optional. List of application security groups to deploy."
}
}
```
Results in doc like this:

### applicationSecurityGroups


Optional. List of application security groups to deploy.

### **Expected behaviour**

`![Parameter Setting]` should be set as optional if the parameter-property nullable is true.

### **Module in use and version:**

- Module: PSDocs.Azure
- Version: **[0.3.0]**

Captured output from `$PSVersionTable`:

```text
Name Value
---- -----
PSVersion 7.4.1
PSEdition Core
GitCommitId 7.4.1
OS Darwin 23.4.0 Darwin Kernel Version 23.4.0: Fri Mar 15 00:12:25 PDT 2024; root:xnu-100…
Platform Unix
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0
```

**Additional context**
none