Cmake warning regarding SDL during build

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

See title.

### Expected Behavior

No warning.

### Steps To Reproduce

Build the package.

I used the AUR package: https://aur.archlinux.org/packages/antimicrox

### Environment

```markdown
- OS: Manjaro Linux

- AntiMicroX version: 3.2.4
```


### Anything else?

Log excerpt:

```

-- Found SDL2: /usr/lib/libSDL2.so  

CMake Warning (dev) at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:438 (message):

  The package name passed to `find_package_handle_standard_args` (SDL2main)

  does not match the name of the calling package (SDL2).  This can lead to

  problems in calling code that expects `find_package` result variables

  (e.g., `_FOUND`) to follow a certain pattern.

Call Stack (most recent call first):

  cmake/modules/FindSDL2.cmake:321 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)

  CMakeLists.txt:479 (find_package)

This warning is for project developers.  Use -Wno-dev to suppress it.

```

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