Remove deprecated UI component classes.

Deleted obsolete and unused UI component classes, including `TextUIComponent`, `VanillaUIComponent`, `StackLayout`, and others, to streamline the codebase. These classes were no longer necessary as part of a planned refactor or redesign.

common-testmod/src/main/java/me/pandamods/test/TestMod.java

@@ -12,17 +12,11 @@
 
 package me.pandamods.test;
 
-import com.mojang.blaze3d.platform.InputConstants;
-import dev.architectury.event.EventResult;
-import dev.architectury.event.events.client.ClientScreenInputEvent;
-import dev.architectury.registry.client.keymappings.KeyMappingRegistry;
 import me.pandamods.pandalib.config.PandaLibConfig;
 import me.pandamods.pandalib.config.holders.ClientConfigHolder;
 import me.pandamods.pandalib.config.holders.CommonConfigHolder;
-import me.pandamods.test.client.screen.TestScreen;
 import me.pandamods.test.config.ClientTestConfig;
 import me.pandamods.test.config.CommonTestConfig;
-import net.minecraft.client.KeyMapping;
 import net.minecraft.resources.ResourceLocation;
 
 public class TestMod {
@@ -32,23 +26,8 @@ public class TestMod {
 	private static final CommonConfigHolder<CommonTestConfig> COMMON_TEST_CONFIG = PandaLibConfig.registerCommon(CommonTestConfig.class);
 	private static final ClientConfigHolder<ClientTestConfig> CLIENT_TEST_CONFIG = PandaLibConfig.registerClient(ClientTestConfig.class);
 
-	public static final KeyMapping TEST_SCREEN_KEYMAPPING = new KeyMapping(
-			"key.testmod.test_screen",
-			InputConstants.Type.KEYSYM,
-			InputConstants.KEY_M,
-			"key.categories.testmod"
-	);
-
 	public TestMod() {
 		instance = this;
-
-		KeyMappingRegistry.register(TEST_SCREEN_KEYMAPPING);
-		ClientScreenInputEvent.KEY_PRESSED_POST.register((minecraft, screen, i, i1, i2) -> {
-			if (TEST_SCREEN_KEYMAPPING.matches(i, i1)) {
-				minecraft.setScreen(new TestScreen());
-			}
-			return EventResult.pass();
-		});
 	}
 
 	public static ResourceLocation resourceLocation(String path) {

common/src/main/java/me/pandamods/pandalib/PandaLib.java

@@ -22,6 +22,8 @@
 import me.pandamods.pandalib.platform.Services;
 import net.minecraft.resources.ResourceLocation;
 
+import java.awt.*;
+
 public class PandaLib {
     public static final String MOD_ID = "pandalib";
 	private static PandaLib instance;