feat: Revert homepage changes, fix Persian slug 404, and make various article and about us adjustments

- Removed the newly added city-focused section from the homepage.
- Fixed 404 error for Persian slugs in specialties and blog pages by implementing a decode helper.
- Removed the "مخصوص شهر" label from article headers.
- Linked article tags to their respective filter pages.
- Adjusted related content images to prevent distortion.
- Added a section in the "About Us" page for physician registration guidance.
- Updated the logo in the "About Us" header to the correct version.
- Added tests for the new functionality and ensured existing tests are updated accordingly.

components/blog/relatedContent/Item.js

@@ -10,8 +10,10 @@ function Item({ data, idx, loading }) {
 
   return (
     <li className="flex w-full relative items-start justify-start gap-[8px] py-[12px]">
+      {/* CustomLoading ظرف نمی‌سازد، پس فرزند مستقیمِ فلکس همین لینک است؛
+          بدون shrink-0 تیتر بلند عرض عکس را می‌بلعد و ارتفاعش ثابت می‌ماند. */}
       <CustomLoading width={80} height={72} loading={loading}>
-        <Link href={`/blog/${data.uuid}`}>
+        <Link href={`/blog/${data.uuid}`} className="block shrink-0">
           <img
             className=" w-[64px] sm:w-[73px] md:w-[85px] lg:w-[97px] h-[56px] sm:h-[64px] md:h-[75px] lg:h-[88px] rounded-[8px] overflow-hidden object-cover "
             src={cover}