build: Add Docker container configuration for NGINX and Dockerfile

Dockerfile

+FROM node:16.6.1-alpine3.13 AS builder
+
+RUN \
+  apk add \
+    git \
+    npm && \
+  git clone \
+    https://github.com/Griefed/ltt-mapmaker.git \
+      /tmp/lttmm && \
+  cd /tmp/lttmm && \
+  npm install -g npm@7.17.0 && \
+  npm install -g @quasar/cli && \
+  npm install && \
+  quasar build
+
+FROM lsiobase/nginx:3.14
+
+LABEL maintainer="Griefed <griefed@griefed.de>"
+
+RUN \
+  mkdir -p \
+    /app/lttmm && \
+  echo "**** Cleanup ****" && \
+    rm -rf \
+      /root/.cache \
+      /tmp/*
+
+COPY --from=builder tmp/lttmm/dist/spa/ /app/lttmm
+COPY root/ /
+
+EXPOSE 80 443
+
+VOLUME /config

root/defaults/default

+server {
+    listen 80 default_server;
+
+    listen 443 ssl;
+
+    root /app/lttmm;
+    index index.php index.html index.htm;
+
+    server_name _;
+
+    ssl_certificate /config/keys/cert.crt;
+    ssl_certificate_key /config/keys/cert.key;
+
+    client_max_body_size 0;
+
+    location / {
+        root   /app/lttmm;
+        index  index.html index.htm;
+    }
+}