General optimations and refactorings in preparation for simpleicon role implementation

roles/docker-simpleicons/files/Dockerfile

@@ -0,0 +1,16 @@
+FROM node:latest AS builder
+
+WORKDIR /app
+COPY package*.json ./
+
+RUN npm install
+
+FROM node:latest
+
+WORKDIR /app
+COPY --from=builder /app/node_modules ./node_modules
+COPY server.js .
+
+EXPOSE 3000
+
+CMD ["node", "server.js"]

roles/docker-simpleicons/files/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "simpleicons-server",
+  "type": "module",
+  "dependencies": {
+    "express": "^4.18.2",
+    "simple-icons": "^9.0.0",
+    "sharp": "^0.32.0"
+  }
+}