feat: add BuildInfo component to display build time and update Docker workflow to pass build time as environment variable

Dockerfile

@@ -35,6 +35,7 @@ COPY --from=dependencies /app/node_modules ./node_modules
 COPY . .
 
 ENV NODE_ENV=production
+ENV BUILD_TIME=${BUILD_TIME}
 
 # Next.js collects completely anonymous telemetry data about general usage.
 # Learn more here: https://nextjs.org/telemetry
@@ -63,6 +64,7 @@ WORKDIR /app
 ENV NODE_ENV=production
 ENV PORT=3000
 ENV HOSTNAME="0.0.0.0"
+ENV BUILD_TIME=${BUILD_TIME}
 
 # Next.js collects completely anonymous telemetry data about general usage.
 # Learn more here: https://nextjs.org/telemetry