FontCharsClass::Store_GDI_Char() crashes if pointersize is 0.

[Skyaero42]

Prerequisites

• I have searched for similar issues and confirmed this is not a duplicate

Game Version

• Command & Conquer Generals
• Command & Conquer Generals: Zero Hour
• Other (please specify below)

Bug Description

• Related to bugfix(gui): Fix crash when RenderFpsFontSize is set to 0 #1788

If PointerSize = 0 it causes a division by zero further on.

Recommended solution: catch the division by zero and add an assert.

Reproduction Steps

n/a

Additional Context

No response