fix(shader): Fix compilation error on non x86_64 platforms

VERTEX_SHADER_SOURCE and FRAGMENT_SHADER_SOURCE are `CStr`, which is based
on the arch dependant `char *`. This causes a compilation error on non
x86_64 platforms. This commit fixes the issue by using `c_char` instead.

Rework of #87.

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 1.1.1
+## Bug fixes
+- Fix build on non x86_64 architectures
+
 # 1.1.0
 
 ## Breaking changes

daemon/src/render/shader.rs

@@ -12,7 +12,7 @@ use super::gl;
 pub unsafe fn create_shader(
     gl: &gl::Gl,
     shader: gl::types::GLenum,
-    sources: &[*const i8],
+    sources: &[*const std::ffi::c_char],
 ) -> Result<gl::types::GLuint> {
     let shader = gl.CreateShader(shader);
     gl_check!(gl, "calling CreateShader");