Add about/contact pages, real social icons, and gallery scroll fix

- Add /about (business-info driven, falls back to existing copy) and
  /contact (business-info contact details + a working form posting to
  the contact-submissions API)
- Point header/footer "About"/"Contact" links at the new pages instead
  of homepage anchors
- Replace the hand-drawn social icons with the real brand SVGs from
  public/icons (Instagram, Telegram, WhatsApp, Bale, Eitaa), inlined
  with currentColor so hover states work; shared via a single
  socialLinks list used by both header and footer
- Remove the horizontal scrollbar under the product gallery thumbnails
  by wrapping them instead of scrolling

public/icons/bale.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16.159" height="12.176" viewBox="0 0 16.159 12.176">
+  <path id="Path_19534" data-name="Path 19534" d="M12.119.553a1.783,1.783,0,0,0-2.583,0L5.554,4.536a1.783,1.783,0,0,0,0,2.583l8.486,8.487a1.826,1.826,0,1,0,2.583-2.583l-7.2-7.2,2.691-2.691A1.783,1.783,0,0,0,12.119.553Z" transform="translate(0 17.176) rotate(-90)" fill="#333132"/>
+</svg>

public/icons/eeta.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="17.129" height="17.253" viewBox="0 0 17.129 17.253">
+  <g id="Group_18956" data-name="Group 18956" transform="translate(-234.629 -321.162)">
+    <path id="Path_19148" data-name="Path 19148" d="M240.486,335.387c-1.7-.823-2-2.692-.833-4.651-1.033-1.49-.66-3.185.845-3.579,0,.15,0,.286,0,.421a1.166,1.166,0,0,0,1.051,1.364,5.687,5.687,0,0,0,1.982,0,15.547,15.547,0,0,0,2.452-.849,1.989,1.989,0,0,0,.646-.507.674.674,0,0,0,.054-1.014A3.4,3.4,0,0,0,243.5,325.2a7.943,7.943,0,0,0-5.707,2.9,3.6,3.6,0,0,0-.866,1.828,2.775,2.775,0,0,0,.988,2.571.9.9,0,0,1,.329.709,3.457,3.457,0,0,0,2.49,2.99.615.615,0,0,0,.148,0c.135-.582.26-1.143.4-1.7.079-.321.244-.423.605-.331a4.768,4.768,0,0,0,4.037-.712,27.252,27.252,0,0,0,2.734-2.289c.759-.7,1.443-1.476,2.175-2.2a4.509,4.509,0,0,1,.871-.652c.018.694.241,1.332-.4,1.956a20.882,20.882,0,0,0-1.995,2.53,21.226,21.226,0,0,1-3.368,3.818,7.278,7.278,0,0,1-8.226.939,5.578,5.578,0,0,1-3.013-4.384c-.628-4.348,2.591-10,7.24-11.651a5.354,5.354,0,0,1,3.508-.106,4.521,4.521,0,0,1,3.133,5.034,4.73,4.73,0,0,1-3.028,4.224c-.625.274-1.237.578-1.855.869C242.05,332.313,240.64,333.3,240.486,335.387Z" transform="translate(0)" fill="#333132"/>
+  </g>
+</svg>

public/icons/instagram.svg

@@ -0,0 +1,5 @@
+<svg id="Group_3409" data-name="Group 3409" xmlns="http://www.w3.org/2000/svg" width="15.746" height="15.746" viewBox="0 0 15.746 15.746">
+  <path id="Path_2388" data-name="Path 2388" d="M11.4,0H4.345A4.35,4.35,0,0,0,0,4.345V11.4a4.35,4.35,0,0,0,4.345,4.345H11.4A4.35,4.35,0,0,0,15.746,11.4V4.345A4.35,4.35,0,0,0,11.4,0Zm2.949,11.4A2.952,2.952,0,0,1,11.4,14.349H4.345A2.952,2.952,0,0,1,1.4,11.4V4.345A2.952,2.952,0,0,1,4.345,1.4H11.4a2.952,2.952,0,0,1,2.948,2.948V11.4Z" transform="translate(0)" fill="#333132"/>
+  <path id="Path_2389" data-name="Path 2389" d="M45.025,40.97a4.057,4.057,0,1,0,4.057,4.057A4.062,4.062,0,0,0,45.025,40.97Zm0,6.718a2.66,2.66,0,1,1,2.66-2.66A2.663,2.663,0,0,1,45.025,47.688Z" transform="translate(-37.152 -37.154)" fill="#333132"/>
+  <path id="Path_2390" data-name="Path 2390" d="M119.946,28.251a1.024,1.024,0,1,0,.725.3A1.029,1.029,0,0,0,119.946,28.251Z" transform="translate(-107.845 -25.62)" fill="#333132"/>
+</svg>

public/icons/telegram.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><!-- Font Awesome Free 5.15.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M248 8C111 8 0 119 0 256s111 248 248 248 248-111 248-248S385 8 248 8zm121.8 169.9l-40.7 191.8c-3 13.6-11.1 16.9-22.4 10.5l-62-45.7-29.9 28.8c-3.3 3.3-6.1 6.1-12.5 6.1l4.4-63.1 114.9-103.8c5-4.4-1.1-6.9-7.7-2.5l-142 89.4-61.2-19.1c-13.3-4.2-13.6-13.3 2.8-19.7l239.1-92.2c11.1-4 20.8 2.7 17.2 19.5z"/></svg>

public/icons/whatsapp.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!-- Font Awesome Free 5.15.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M380.9 97.1C339 55.1 283.2 32 223.9 32c-122.4 0-222 99.6-222 222 0 39.1 10.2 77.3 29.6 111L0 480l117.7-30.9c32.4 17.7 68.9 27 106.1 27h.1c122.3 0 224.1-99.6 224.1-222 0-59.3-25.2-115-67.1-157zm-157 341.6c-33.2 0-65.7-8.9-94-25.7l-6.7-4-69.8 18.3L72 359.2l-4.4-7c-18.5-29.4-28.2-63.3-28.2-98.2 0-101.7 82.8-184.5 184.6-184.5 49.3 0 95.6 19.2 130.4 54.1 34.8 34.9 56.2 81.2 56.1 130.5 0 101.8-84.9 184.6-186.6 184.6zm101.2-138.2c-5.5-2.8-32.8-16.2-37.9-18-5.1-1.9-8.8-2.8-12.5 2.8-3.7 5.6-14.3 18-17.6 21.8-3.2 3.7-6.5 4.2-12 1.4-32.6-16.3-54-29.1-75.5-66-5.7-9.8 5.7-9.1 16.3-30.3 1.8-3.7.9-6.9-.5-9.7-1.4-2.8-12.5-30.1-17.1-41.2-4.5-10.8-9.1-9.3-12.5-9.5-3.2-.2-6.9-.2-10.6-.2-3.7 0-9.7 1.4-14.8 6.9-5.1 5.6-19.4 19-19.4 46.3 0 27.3 19.9 53.7 22.6 57.4 2.8 3.7 39.1 59.7 94.8 83.8 35.2 15.2 49 16.5 66.6 13.9 10.7-1.6 32.8-13.4 37.4-26.4 4.6-13 4.6-24.1 3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z"/></svg>