Add .NET logo and fix C++ logo in SCA language support section

[gorkavicente]

What does this PR do? What is the motivation?

Updates the SCA language support cards in the sca-lang-support.html partial:

• Adds the .NET logo (using dotnet_avatar.svg) after the Java logo, where the Go logo previously appeared
• Fixes the C++ logo entry (replaces the incorrectly used c_sharp.png with cpp.png) and corrects the alt text to c++

Both .NET and C++ are now properly represented in the language support grid.

Merge instructions

Merge readiness:

• Ready for merge

Additional notes

[drichards-87]

@gorkavicente Just FYI, there’s a merge conflict in the partial file. I took a quick look, but I wasn’t sure how it should be resolved and didn’t want to mess up the changes you were making. Could you take a look?

[StefonSimmons]

The change looks good. One thing - every image card links to the same anchor, so the links aren't actually navigating users anywhere distinct. Should we drop the wrappers, or are there plans to link each language to its own section?
CC: @drichards-87

[drichards-87]

The change looks good. One thing - every image card links to the same anchor, so the links aren't actually navigating users anywhere distinct. Should we drop the wrappers, or are there plans to link each language to its own section? CC: @drichards-87

@StefonSimmons I think we did have separate pages at one time, but then we removed them later. I agree though, if we don't have separate language-specific setup pages that we can link to, we should probably convert this to a list, instead of using a partial.