Show the correct shield status in tooltip for more conditions (#28476)

* Add support for new shield codes in JS SDK

* change string used for shield message

* fix test

test/unit-tests/components/views/rooms/EventTile-test.tsx

@@ -301,6 +301,8 @@ describe("EventTile", () => {
             [EventShieldReason.UNKNOWN_DEVICE, "unknown or deleted device"],
             [EventShieldReason.AUTHENTICITY_NOT_GUARANTEED, "can't be guaranteed"],
             [EventShieldReason.MISMATCHED_SENDER_KEY, "Encrypted by an unverified session"],
+            [EventShieldReason.SENT_IN_CLEAR, "Not encrypted"],
+            [EventShieldReason.VERIFICATION_VIOLATION, "Sender's verified identity has changed"],
         ])("shows the correct reason code for %i (%s)", async (reasonCode: EventShieldReason, expectedText: string) => {
             mxEvent = await mkEncryptedMatrixEvent({
                 plainContent: { msgtype: "m.text", body: "msg1" },