Updating help text on channel switcher (#3256)

webapp/components/channel_switch_modal.jsx

@@ -101,7 +101,7 @@ export default class SwitchChannelModal extends React.Component {
                     <div className='modal__hint'>
                         <FormattedMessage
                             id='channel_switch_modal.help'
-                            defaultMessage='↑↓ to browse, TAB to select, ↵ to confirm, ESC to dismiss'
+                            defaultMessage='Type channel name. Use ↑↓ to browse, TAB to select, ↵ to confirm, ESC to dismiss'
                         />
                     </div>
                     <SuggestionBox

webapp/i18n/en.json

@@ -719,7 +719,7 @@
   "channel_notifications.sendDesktop": "Send desktop notifications",
   "channel_notifications.unreadInfo": "The channel name is bolded in the sidebar when there are unread messages. Selecting \"Only for mentions\" will bold the channel only when you are mentioned.",
   "channel_select.placeholder": "--- Select a channel ---",
-  "channel_switch_modal.help": "↑↓ to browse, TAB to select, ↵ to confirm, ESC to dismiss",
+  "channel_switch_modal.help": "Type channel name. Use ↑↓ to browse, TAB to select, ↵ to confirm, ESC to dismiss",
   "channel_switch_modal.hint": "Type the name of a channel",
   "channel_switch_modal.not_found": "No matches found.",
   "channel_switch_modal.submit": "Switch",