fix the default setting and migration

.changeset/swift-penguins-help.md

@@ -2,4 +2,4 @@
 '@rocket.chat/meteor': major
 ---
 
-Change the E2EE settings, "Access unencrypted content in encrypted rooms" and  "Encrypt files" default values, making the current behavior not allow to send unencrypted messages in end-to-end encrypted channels and enable users to send encrypted files and attachments.
+Change the E2EE setting - "Access unencrypted content in encrypted rooms" default value, making the current behavior not allow to send unencrypted messages in end-to-end encrypted channels.

apps/meteor/server/settings/e2e.ts

@@ -10,7 +10,7 @@ export const createE2ESettings = () =>
 			alert: 'E2E_Enable_alert',
 		});
 
-		await this.add('E2E_Allow_Unencrypted_Messages', true, {
+		await this.add('E2E_Allow_Unencrypted_Messages', false, {
 			type: 'boolean',
 			public: true,
 			enableQuery: { _id: 'E2E_Enable', value: true },

apps/meteor/server/startup/migrations/v314.ts

@@ -4,7 +4,7 @@ import { addMigration } from '../../lib/migrations';
 
 addMigration({
 	version: 314,
-	name: 'Update default behavior of E2EE settings, to not allow un-encrypted messages by default and allow files encryption by default.',
+	name: 'Update default behavior of E2E_Allow_Unencrypted_Messages setting, to not allow un-encrypted messages by default.',
 	async up() {
 		await Settings.updateOne(
 			{
@@ -17,16 +17,5 @@ addMigration({
 				},
 			},
 		);
-		await Settings.updateOne(
-			{
-				_id: 'E2E_Enable_Encrypt_Files',
-			},
-			{
-				$set: {
-					value: true,
-					packageValue: true,
-				},
-			},
-		);
 	},
 });