Avoid "type" for keyboard shortcuts

Author: edemaine

client/MessagePDF.coffee

@@ -260,14 +260,14 @@ WrappedMessagePDF = React.memo ({file}) ->
             </button>
           </TextTooltip>
           <OverlayTrigger placement="top" flip overlay={(props) =>
-            <Tooltip {...props}>Previous page (or type <kbd>-</kbd>)</Tooltip>
+            <Tooltip {...props}>Previous page (keyboard: <kbd>-</kbd>)</Tooltip>
           }>
             <button className="btn btn-default prevPage #{if pageNum <= 1 then 'disabled'}" aria-label="Previous page" onClick={onChangePage -1}>
               <span className="fas fa-backward" aria-hidden="true"/>
             </button>
           </OverlayTrigger>
           <OverlayTrigger placement="top" flip overlay={(props) =>
-            <Tooltip {...props}>Next page (or type <kbd>+</kbd>)</Tooltip>
+            <Tooltip {...props}>Next page (keyboard: <kbd>+</kbd>)</Tooltip>
           }>
             <button className="btn btn-default nextPage #{if pageNum >= numPages then 'disabled'}" aria-label="Next page" onClick={onChangePage +1}>
               <span className="fas fa-forward" aria-hidden="true"/>

client/message.coffee

@@ -240,7 +240,7 @@ Message = React.memo ({message}) ->
     <div className="hidden-print text-right toc-toggle">
       <OverlayTrigger placement="top" flip overlay={(props) ->
         <Tooltip {...props}>
-          Click (or type <kbd>t</kbd>) to toggle the right sidebar
+          Click (or press <kbd>t</kbd>) to toggle the right sidebar
           listing all posts.  Click on post to scroll to that post;
           drag posts to re-order.
         </Tooltip>
@@ -2796,7 +2796,7 @@ export WrappedSubmessage = React.memo ({message, read}) ->
                         <p>Message is <b>protected</b>, so edits are restricted to coauthors and superusers.</p>
                       }
                       {if can.becomeSuper and not can.edit
-                        <p>Become Superuser (or type <kbd>s</kbd>) to edit this message.</p>
+                        <p>Click Become Superuser (or press <kbd>s</kbd>) to edit this message.</p>
                       }
                     </Tooltip>
                   }>