Move Dockerfile to repo root + remove devcontainer

.devcontainer/devcontainer.json

@@ -1,31 +0,0 @@
-{
-    "name": "Qt 6.8.0 Development Container",
-    "build": {
-      "dockerfile": "Dockerfile",
-      "context": "."
-    },
-    "postStartCommand": "./.devcontainer/poststart.sh",
-    "runArgs": [
-        "-e", "DISPLAY=${env:DISPLAY}",
-        "-v", "/tmp/.X11-unix:/tmp/.X11-unix"
-      ],
-    "customizations": {
-        "vscode": {
-          "settings": {
-            "terminal.integrated.shell.linux": "/bin/bash"
-          },
-          "extensions": [
-            "ms-vscode.cmake-tools",
-            "ms-vscode.cpptools",
-            "ms-vscode.makefile-tools",
-            "androidtool.android",
-            "ms-azuretools.vscode-docker",
-            "bbenoist.QML"
-        ]
-        }
-      },
-      "forwardPorts": [8080],
-      "mounts": [
-        "source=${localWorkspaceFolder},target=/workspace,type=bind"
-      ]
-}

.devcontainer/poststart.sh

@@ -1,2 +0,0 @@
-#!/bin/bash
-echo "Welcome"

.gitea/workflows/build-container.yaml

@@ -21,7 +21,7 @@ jobs:
 
       - name: Build Docker image
         run: |
-          docker build -t ${{ secrets.LOCAL_INSTANCE_IP }}/${{ secrets.DOCKER_USERNAME }}/devcontainer:latest -f .devcontainer/Dockerfile .
+          docker build -t ${{ secrets.LOCAL_INSTANCE_IP }}/${{ secrets.DOCKER_USERNAME }}/devcontainer:latest -f Dockerfile .
 
       - name: Push Docker image
         run: |