Add CTRL + ENTER to force send message.

Fix: cursor jumping to the end of message area.
Fix: inconsistent message send button on mobile.

src/components/common/messaging/MessageBase.tsx

@@ -6,6 +6,7 @@ import { decodeTime } from "ulid";
 import { Text } from "preact-i18n";
 
 import { useDictionary } from "../../../lib/i18n";
+import { isTouchscreenDevice } from "../../../lib/isTouchscreenDevice";
 
 import { dayjs } from "../../../context/Locale";
 
@@ -34,9 +35,11 @@ export default styled.div<BaseMessageProps>`
     flex-direction: row;
     padding-inline-end: 16px;
 
-    @media (pointer: coarse) {
-        user-select: none;
-    }
+    ${() =>
+        isTouchscreenDevice &&
+        css`
+            user-select: none;
+        `}
 
     ${(props) =>
         props.contrast &&