refactor: split components to multiple subdirs

subdirs
- homepage
- trainingpage
- layout

components/homepage/Environment.tsx

@@ -1,6 +1,6 @@
 import Image from "next/image";
 
-import { Container } from "./Container";
+import { Container } from "@/components/Container";
 
 import logoKubernetes from "@/images/logos/tools/kubernetes.svg";
 import logok3s from "@/images/logos/tools/k3s.svg";

components/trainingpage/Training.tsx

@@ -1,8 +1,8 @@
 import Image from "next/image";
 
 import TrainingType from "@/types/training";
-import { Container } from "./Container";
-import { Button } from "./Button";
+import { Container } from "@/components/Container";
+import { Button } from "@/components/Button";
 
 type Props = {
   training: TrainingType;

components/trainingpage/TrainingListGrid.tsx

@@ -2,8 +2,8 @@ import Image from "next/image";
 import clsx from "clsx";
 
 import TrainingType from "@/types/training";
-import { Container } from "./Container";
-import { Button } from "./Button";
+import { Container } from "@/components/Container";
+import { Button } from "@/components/Button";
 
 type TrainingDetailProps = {
   training: TrainingType;