Default severity of IDE0390-0391 isn't available

### Type of issue

Missing information

### Description

No rules have this but should have it, we need to know if it's available by default, which severity that is and which SDK it's available in and if the previous values are different for different versions of the SDK

### Page URL

https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/style-rules/ide0390-ide0391

### Content source URL

https://github.com/dotnet/docs/blob/main/docs/fundamentals/code-analysis/style-rules/ide0390-ide0391.md

### Document Version Independent Id

c2378715-f5b9-ce62-5d5b-5971000f4428

### Platform Id

e06ff90a-6fde-46c8-01a4-144dde8cde7d

### Article author

@gewarren

### Metadata

* ID: 95e196df-2a74-1092-5c6d-b13ab6e25e4b
* PlatformId: e06ff90a-6fde-46c8-01a4-144dde8cde7d
* Service: **dotnet-fundamentals**

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