- REVIEWED: Checking `NULL` input on functions getting `const char *text`, to avoid crashes
- REVIEWED: `strcpy()` usage, prioritize `strncpy()` with limited copy to buffer size
- REPLACED: `strlen()` by `TextLength()` on [rtext] module
- REVIEWED: Replaced some early returns (but keeping others, for easier code following)

Now it goes from -1.0 (full left) to 1.0 (full right) being 0.0 center

* Get C++ compilers working

* Fix Formatting

Fix  raysan5/raylib#5131.

Allow for the use of raudio stand alone

In the case of a failure within miniaudio on the function: ma_convert_frames, the dynamic memory allocated for the `data` variable  will leak on the early return.

Force conversion to 16-bit, same as how it is done in `LoadMusicStream`.
This fixes the problem where 24-bit FLACs play silence or broken sound.

Co-authored-by: Listeria monocytogenes <listeria@disroot.org>

Similarly to how it's done for WAV format, by forcing the conversion
to s16 on UpdateMusicStream().

also allow `finalFrame = wave->frameCount' as the range of frames does
not include it.

Co-authored-by: Listeria monocytogenes <listeria@disroot.org>

Co-authored-by: Listeria monocytogenes <listeria@disroot.org>

* Fixes for loading Music

Fix for #3889
Fixes for QOA crashes.
Memory leak FIX on unsuccessful .wav loading.

* Added comments

* Flip release of buffer;

First it needs to be taken out of the processing chain, then it can be released. The inverse of the initialization.

* Add mutex locks to audio buffer functions; Separate those used from both threads

* Flip release of buffer;

First it needs to be taken out of the processing chain, then it can be released. The inverse of the initialization.

* Remove TODO marker; The buffer is in stopped state and its data won't be accessed

* Add mutex locks to music/stream functions directly operating on buffer

* Secure UpdateMusicStream/PlayMusicStream/UpdateAudioStream;

This change is twofold:
* Add locks to UpdateMusicStream/UpdateAudioStream (second one needed separation)
* Remove unnecessary hack to restart music - inlining the statements resulted in a no-op

Especially the second part made it easier to ensure thread-safety overall

* Remove redundant check; Already checked at beginning of function

- Review formatting
 - Improve readability for some functions result return
 - Minimize early returns
 - Align LoadFileData() to UnloadFileData()

Fixes some crashes, e.g. calling StopMusicStream after trying to load Music from a non-existant .mp3 file