chore(base): Move RoomNotificationMode into matrix-sdk-base.

This patch moves the `RoomNotificationMode` type from `matrix-sdk`
to `matrix-sdk-base` because it's going to be shared across multiple
crates.

crates/matrix-sdk-base/src/lib.rs

@@ -29,6 +29,7 @@ pub mod deserialized_responses;
 mod error;
 pub mod latest_event;
 pub mod media;
+pub mod notification_settings;
 mod rooms;
 
 pub mod read_receipts;

crates/matrix-sdk-base/src/notification_settings.rs

@@ -0,0 +1,26 @@
+// Copyright 2024 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for that specific language governing permissions and
+// limitations under the License.
+
+//! Some shared types about notification settings.
+
+/// Enum representing the push notification modes for a room.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum RoomNotificationMode {
+    /// Receive notifications for all messages.
+    AllMessages,
+    /// Receive notifications for mentions and keywords only.
+    MentionsAndKeywordsOnly,
+    /// Do not receive any notifications.
+    Mute,
+}

crates/matrix-sdk/src/notification_settings/mod.rs

@@ -23,22 +23,13 @@ mod command;
 mod rule_commands;
 mod rules;
 
+pub use matrix_sdk_base::notification_settings::RoomNotificationMode;
+
 use crate::{
     config::RequestConfig, error::NotificationSettingsError, event_handler::EventHandlerDropGuard,
     Client, Result,
 };
 
-/// Enum representing the push notification modes for a room.
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub enum RoomNotificationMode {
-    /// Receive notifications for all messages.
-    AllMessages,
-    /// Receive notifications for mentions and keywords only.
-    MentionsAndKeywordsOnly,
-    /// Do not receive any notifications.
-    Mute,
-}
-
 /// Whether or not a room is encrypted
 #[derive(Debug, Clone, Copy)]
 pub enum IsEncrypted {