remove calls to deprecated std.mem.copy function

mzte-nv/src/compiler.zig

@@ -126,7 +126,7 @@ pub fn doCompile(path: []const u8, alloc: std.mem.Allocator) !void {
             }
 
             // replace file extension
-            std.mem.copy(u8, outname[outname.len - 3 ..], "lua");
+            @memcpy(outname[outname.len - 3 ..], "lua");
 
             var file = try std.fs.cwd().openFile(luafile, .{});
             defer file.close();

scripts/playtwitch/src/State.zig

@@ -72,7 +72,7 @@ pub fn init(win: *c.GLFWwindow) !*Self {
         .live_status_loading = true,
     };
 
-    std.mem.copy(u8, &self.quality_buf, "best");
+    @memcpy(self.quality_buf[0..4], "best");
 
     const thread = try std.Thread.spawn(.{}, config.configLoaderThread, .{self});
     thread.detach();

scripts/playtwitch/src/gui.zig

@@ -83,8 +83,8 @@ pub fn winContent(state: *State) !void {
 
             for (preset_qualities) |quality| {
                 if (c.igSelectable_Bool(quality.ptr, false, 0, .{ .x = 0.0, .y = 0.0 })) {
-                    @memset(&state.quality_buf, 0);
-                    std.mem.copy(u8, &state.quality_buf, quality);
+                    @memcpy(state.quality_buf[0..quality.len], quality);
+                    state.quality_buf[quality.len] = 0;
                 }
             }
         }

scripts/randomwallpaper/src/main.zig

@@ -129,7 +129,7 @@ fn setWallpapersX(alloc: std.mem.Allocator, wps: []const []const u8) !u8 {
         feh_baseargs.len + @as(usize, @intCast(screens)),
     );
     defer alloc.free(feh_argv);
-    std.mem.copy([]const u8, feh_argv, &feh_baseargs);
+    @memcpy(feh_argv[0..feh_baseargs.len], &feh_baseargs);
 
     var prng = std.rand.DefaultPrng.init(std.crypto.random.int(u64));
     const rand = prng.random();