shorten file names of libraries (#532)

tabularray.sty

@@ -7091,7 +7091,7 @@
             \cs_gset_eq:cN { __tblr_use_lib_ ##1: } \prg_do_nothing:
           }
           {
-            \RequirePackage { tabularray-library-##1 }
+            \RequirePackage { tblrlib##1 }
           }
       }
   }