MM-11384: Add system install date information to the client config (#9218)

* MM-11384: Add system install date information to the client config

* Fixing translation text

* Fixes from Peer Review

i18n/en.json

@@ -3110,6 +3110,10 @@
     "id": "app.schemes.is_phase_2_migration_completed.not_completed.app_error",
     "translation": "This API endpoint is not accessible as required migrations have not yet completed."
   },
+  {
+    "id": "app.system_install_date.parse_int.app_error",
+    "translation": "Failed to parse installation date"
+  },
   {
     "id": "app.team.join_user_to_team.max_accounts.app_error",
     "translation": "This team has reached the maximum number of allowed accounts. Contact your systems administrator to set a higher limit."
@@ -5938,6 +5942,10 @@
     "id": "store.sql_user.get_for_login.multiple_users",
     "translation": "We found multiple users matching your credentials and were unable to log you in. Please contact an administrator."
   },
+  {
+    "id": "store.sql_user.get_system_install_date.app_error",
+    "translation": "Unable to infer the system date based on the first user creation date."
+  },
   {
     "id": "store.sql_user.get_new_users.app_error",
     "translation": "We encountered an error while finding the new users"