fix: correct file path for hypernode.svg in Dockerfile

The hypernode.svg file was being copied to the wrong location. Update the COPY command to place it in the public directory where it belongs.

Author: lklynet

Dockerfile

@@ -7,7 +7,7 @@ COPY package*.json ./
 RUN npm ci --omit=dev
 
 COPY public/ ./public/
-COPY server.js hypermind2.svg LICENSE ./
+COPY server.js ./public/hypernode.svg LICENSE ./
 COPY src/ ./src/
 
 ENV PORT=3000