(DOCSP-7332): Added redir '/sensitive-data-encryption' to '/client-side-field-level-encryption-guide'

* added redirect

* added one white space at the end of the redirects file

Author: Mohammad Hunan Chughtai

config/redirects

@@ -68,3 +68,5 @@ raw: ecosystem/platforms/vmware-cloud-foundry -> https://pivotal.io/platform/ser
 raw: ecosystem/use-cases/pre-aggregated-reports-mmapv1 -> https://docs.mongodb.com/manual/changeStreams
 raw: ecosystem/tools/wireshark -> https://wiki.wireshark.org/Mongo
 raw: ecosystem/drivers/syntax-table -> ${base}/drivers
+raw: ecosystem/use-cases/sensitive-data-encryption ->  ${base}/use-cases/client-side-field-level-encryption-guide
+