Use tabWidth 4 without actual tabs.

.prettierrc.js

@@ -1,6 +1,5 @@
 module.exports = {
     "tabWidth": 4,
-    "useTabs": true,
     "trailingComma": "all",
     "jsxBracketSameLine": true,
     "importOrder": ["preact|classnames|.scss$", "/(lib)", "/(redux)", "/(context)", "/(ui|common)|.svg$", "^[./]"],

src/components/common/messaging/MessageBox.tsx

@@ -450,9 +450,7 @@ function MessageBox({ channel, draft }: Props) {
                         channel.channel_type === "DirectMessage"
                             ? translate("app.main.channel.message_who", {
                                   person: client.users.get(
-										client.channels.getRecipient(
-											channel._id,
-										),
+                                      client.channels.getRecipient(channel._id),
                                   )?.username,
                               })
                             : channel.channel_type === "SavedMessages"