Fix: Add flag to search query for SecretService to retrieve all accounts (#2218)

Currently, this searchQuery only returns one account even when there are
multiple of them. Adding this flag will result in retrieving all the
accounts and does not interrupt the previous flow.

Author: mjcheetham

src/shared/Core/Interop/Linux/SecretServiceCollection.cs

@@ -66,7 +66,7 @@ private unsafe IEnumerable<ICredential> Enumerate(string service, string account
                     secService,
                     ref schema,
                     queryAttrs,
-                    SecretSearchFlags.SECRET_SEARCH_UNLOCK,
+                    SecretSearchFlags.SECRET_SEARCH_UNLOCK | SecretSearchFlags.SECRET_SEARCH_ALL,
                     IntPtr.Zero,
                     out error);