Code examples always need L/R scrolling

### Type of issue

Other (describe below)

### Description

Website formatting of 3 columns + code up to 100 chars wide make it hard to keep the code lines visible even in a moderately wide window.

"Focus mode" removes the structure on the left but still occupies that portion of the window width. The screenshot shows a 1420 width window in chrome but several long lines are still unreadable without scrolling.

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.ienumerable-1?view=net-9.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.Collections.Generic/IEnumerable`1.xml

### Document Version Independent Id

39542d3c-a0d0-33a4-6798-3e765a07f5cd

### Platform Id

9c9d2244-0db1-9ad7-cc57-64f47d3c1e9a

### Article author

@dotnet-bot