Add a button to InventoryScreen

[fzlz-java]

Description

I was trying to add a button to my players inventory screen client sided but i dont know how to do so ive tried changing titlescreen to inventory screen and initwidgetsnormal to init but it still doesnt work

code:
import net.minecraft.client.gui.screen.Screen;
import net.minecraft.client.gui.screen.TitleScreen;
import net.minecraft.client.gui.screen.world.SelectWorldScreen;
import net.minecraft.client.gui.widget.ButtonWidget;
import net.minecraft.text.Text;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

@mixin(TitleScreen.class)
public abstract class ExampleClientMixin extends Screen {

protected ExampleClientMixin(Text title) {
	super(title);
}

@Inject(method = "initWidgetsNormal", at = @At("RETURN"))
private void addCustomButton(int y, int spacingY, CallbackInfo ci) {
	this.addDrawableChild(ButtonWidget.builder(Text.literal("Hello"), (button) -> {
	}).dimensions(this.width / 2 - 100 +205, y, 50, 20).build());
}

}