[PM-11304] Enable fab for collection vault listings

(cherry picked from commit 96f118e1e4)

app/src/main/java/com/x8bit/bitwarden/ui/vault/feature/itemlisting/VaultItemListingViewModel.kt

@@ -2111,7 +2111,7 @@ data class VaultItemListingState(
                 val collectionName: String = "",
             ) : Vault() {
                 override val titleText: Text get() = collectionName.asText()
-                override val hasFab: Boolean get() = false
+                override val hasFab: Boolean get() = true
             }
         }