feat: add SEO and sitemap functionality

- Implemented robots.txt to guide search engine indexing.
- Created layout components for the selector and series pages to manage metadata.
- Developed a dynamic sitemap generator based on existing series and frameworks data.
- Centralized SEO information in a new lib/seo.js file to maintain consistency across the site.
- Added SVG logos for branding.

graphify-out/.graphify_labels.json

@@ -1,80 +0,0 @@
-{
-  "0": "Next.js App Pages",
-  "1": "ESP32 Original SoC Silicon",
-  "2": "Xtensa DevKit Board Diagrams",
-  "3": "Layout and Marketplace API",
-  "4": "ESP32-C2 DevKit and Branding",
-  "5": "C6/C61 Wi-Fi 6 DevKits",
-  "6": "Lint and Build Tooling",
-  "7": "ESP32-C61 Silicon Subsystems",
-  "8": "ESP32-C3 Silicon Subsystems",
-  "9": "ESP32-C5 Silicon Subsystems",
-  "10": "ESP32-H2 Silicon Subsystems",
-  "11": "ESPDocs Site Content Pillars",
-  "12": "ESP32-C6 Silicon Subsystems",
-  "13": "ESP32-P4 Silicon Subsystems",
-  "14": "ESP32-S3 Silicon Subsystems",
-  "15": "ESP32-S2 Silicon Subsystems",
-  "16": "ESP32-C2 Silicon Subsystems",
-  "17": "Classic Wi-Fi and BLE Radios",
-  "18": "Modern BLE and Wi-Fi 6 Radios",
-  "19": "802.15.4 Thread and Zigbee",
-  "20": "P4 Camera and Video Pipeline",
-  "21": "CPU Cores and SIMD Extensions",
-  "22": "JS Path Aliases",
-  "23": "ESP-Matter Code Example",
-  "24": "Shared GDMA Controllers",
-  "25": "RISC-V Core Speed Variants",
-  "26": "Secure Boot (Xtensa Family)",
-  "27": "Thread 1.4 Zigbee Radio",
-  "28": "Bluetooth LE 5.3 Variants",
-  "29": "RISC-V Core Clock Variants",
-  "30": "Secure Boot (RISC-V Family)",
-  "31": "ESP-NN Code Example",
-  "32": "ESP-WHO Code Example",
-  "33": "Next.js Config",
-  "34": "PostCSS Config",
-  "35": "TEE and Permission Control",
-  "36": "ESP-ADF Code Example",
-  "37": "ESP-DSP Code Example",
-  "38": "ESP-IDF Code Example",
-  "39": "MicroPython Example",
-  "40": "Start Config Script",
-  "41": "eslint.config.mjs",
-  "42": "page.jsx",
-  "43": "page.jsx",
-  "44": "ConnectionsDiagram.jsx",
-  "45": "page.jsx",
-  "46": "page.jsx",
-  "47": "page.jsx",
-  "48": "Header.jsx",
-  "49": "route.js",
-  "50": "page.jsx",
-  "51": "page.jsx",
-  "52": "page.jsx",
-  "53": "page.jsx",
-  "54": "CLAUDE.md",
-  "55": "BoardCard.jsx",
-  "56": "CodeExample.jsx",
-  "57": "Footer.jsx",
-  "58": "Providers.jsx",
-  "59": "SeriesTabMenu.jsx",
-  "60": "Crypto Accelerators (AES, SHA, RSA, ECC, HMAC, RNG)",
-  "61": "API do Marketplace (app/api/placas/route.js)",
-  "62": "Comparação de Séries",
-  "63": "Diagramas Interativos de Conexões",
-  "64": "Exemplos de Código",
-  "65": "Frameworks ESP32 (ESP-IDF, Arduino, MicroPython)",
-  "66": "Google Sheets API Integration",
-  "67": "GOOGLE_SHEETS_API_KEY env var",
-  "68": "Marketplace de Placas (Catálogo)",
-  "69": "Material-UI",
-  "70": "Licença MIT",
-  "71": "Next.js 15 App Router",
-  "72": "React 19",
-  "73": "Séries ESP32",
-  "74": "Tailwind CSS 4",
-  "75": "Projeto não oficial (sem afiliação Espressif)",
-  "76": "Deploy na Vercel",
-  "77": "micropython.py"
-}