[Glitch] Hide search from Compose on mobile devices

Port f48902e6e6 to glitch-soc

app/javascript/flavours/glitch/features/drawer/index.js

@@ -100,7 +100,7 @@ class Drawer extends React.Component {
             onSettingsClick={onOpenSettings}
           />
         ) : null}
-        <DrawerSearch
+        {(multiColumn || isSearchPage) && <DrawerSearch
             intl={intl}
             onChange={onChange}
             onClear={onClear}
@@ -108,7 +108,7 @@ class Drawer extends React.Component {
             onSubmit={onSubmit}
             submitted={submitted}
             value={searchValue}
-        />
+          /> }
         <div className='contents'>
           <DrawerAccount account={account} />
           {!isSearchPage && <Composer />}