[Bug] Ampersands doubled in mod grid on Windows

[PolarisWasInDenial]

Background

• Operating System: Windows 10 Home
• CKAN Version: 1.31.2
• KSP Version: N/A; Metadata bug

Have you made any manual changes to your GameData folder (i.e., not via CKAN)? Yes

Problem

Describe the bug: Crew R and R mod (CrewQueueTwo) has 2 &s in its name on CKAN

Steps to reproduce: Open CKAN

• Search "Crew R"
• Read name field for Crew R&R mod

Expected behavior
Text matches mod name

Screenshots (if applicable)

CKAN error code (if applicable): N/A

[HebaruSan]

A typo? No, the metadata is fine:

https://github.com/KSP-CKAN/CKAN-meta/blob/master/CrewQueueTwo/CrewQueueTwo-1.1.11.4.ckan#L4

What you're seeing is a discrepancy between Mono and .NET. See #3149, we double up the & characters because Mono turns them into hotkey markers otherwise:

[HebaruSan]

These calls to Replace probably need to be wrapped in if (Platform.IsMono):

CKAN/GUI/Model/ModList.cs

Lines 376 to 377 in 2d387d9

	var name = new DataGridViewTextBoxCell { Value = mod.Name.Replace("&", "&&") };
	var author = new DataGridViewTextBoxCell { Value = string.Join(", ", mod.Authors).Replace("&", "&&") };

CKAN/GUI/Model/ModList.cs

Line 406 in 2d387d9

var desc = new DataGridViewTextBoxCell { Value = mod.Abstract.Replace("&", "&&") };