build a search link for the identifier of each main_aya, prev_aya, next_aya
build a search link for the identifier of each main_aya, prev_aya,
next_aya

 - prevent showing of prev_aya for the first aya and next_aya for the
last
aya 

Former-commit-id: 18e578619a7b6a1f4aa8a8c819d73d28c73bd0f9
muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous