fix: zygiskd companion, companion responses, write fd function and early client close

This commit fixes numerous issues in zygiskd code: The zygiskd companion code not loading the right entry, the companion not sending the correct responses, the write fd function not working properly and early client close when connecting to the companion.

zygiskd/src/root_impl/apatch.c

@@ -57,7 +57,7 @@ bool _apatch_get_package_config(struct packages_config *restrict config) {
     return false;
   }
 
-  char line[1024];
+  char line[1024 * 2];
   /* INFO: Skip the CSV header */
   fgets(line, sizeof(line), fp);