fix(build): remove preferred optimization mode from build configuration

- Updated the build configuration to use default optimization settings
- This change simplifies the build process and allows for more flexibility in optimization choices

build.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 
 pub fn build(b: *std.Build) void {
     const target = b.standardTargetOptions(.{});
-    const optimize = b.standardOptimizeOption(.{ .preferred_optimize_mode = .ReleaseSmall });
+    const optimize = b.standardOptimizeOption(.{});
 
     const exe = b.addExecutable(.{
         .name = "mcm",