glfw: make init inline

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

glfw/src/main.zig

@@ -38,7 +38,7 @@ pub const version = @import("version.zig");
 /// Unicode text input.
 ///
 /// @thread_safety This function must only be called from the main thread.
-pub fn init() Error!void {
+pub inline fn init() Error!void {
     if (c.glfwInit() != c.GLFW_TRUE) {
         return try getError();
     }