Node modules wasnt copied over, and fixed issue with bun build by building each workspace individually

.dockerignore

@@ -1,4 +1,4 @@
-node_modules
+**/node_modules
 dist
 .git
 .gitignore

Dockerfile

@@ -20,9 +20,18 @@ COPY . .
 # ensuring the environment variables are set for the build if needed
 ENV NODE_ENV=production
 ENV PORT=3000
-RUN bun --filter "@torrent-client/shared" build
-RUN bun --filter "@torrent-client/server" build
-RUN bun --filter "@torrent-client/client" build
+# Build packages individually by changing directory
+WORKDIR /app/packages/shared
+RUN bun run build
+
+WORKDIR /app/packages/server
+RUN bun run build
+
+WORKDIR /app/packages/client
+RUN bun run build
+
+# Reset working directory
+WORKDIR /app
 
 # Expose the port (Dokku will override PORT env var, but 3000 is a good default documentation)
 EXPOSE 3000