feat: Refactor specialty display logic and enhance specialty filtering

- Introduced SpecialtyChips component to manage the display of doctor's specialties with a primary specialty and a count of additional specialties.
- Updated ItemDoctor component to utilize SpecialtyChips for better UI presentation.
- Enhanced PosterLight and Poster components to display primary specialties and a text line for sub-specialties.
- Implemented nextSpecialtyFilter function to improve specialty selection logic in the Content component.
- Updated search functionality to allow searching by both doctor name and specialty.
- Added new specialties to specialties.json for better coverage.
- Created sync-specialties script to synchronize specialties data with the backend during build.
- Added tests for new components and helper functions to ensure functionality and reliability.

components/doctors/search/SearchField.js

@@ -55,7 +55,7 @@ function SearchField({ filter, setFilter, setDataInURL, sendReq }) {
         clearText={clearText}
         inputValue={filter.name}
         handleSearch={handleSearch}
-        placeholder="جستجوی نام پزشک ..."
+        placeholder="جستجوی نام پزشک یا تخصص ..."
       />
     </div>
   );