Modeling view appearance final tweaks (#6425)

* Remove bug button from LowerRightControls

There is a "report a bug" button in the help menus, both native and
lower-right corner. This is overkill, and users are not using coredump
well.

* Remove coredump from refresh UI button

* Add a "Refresh app" command to palette

* Update snapshots

* Rework "Refresh and report bug" menu item to "Report a bug"

* Add refresh button to sidebar

* Convert upper-right refresh button to Share

* Tweak styles of command button

* Make anonymous user icon same size as known user image

* Remove ModelStateIndicator

* Use hotkeyDisplay for the sidebar too

* Update snapshots

* Remove tooltip from command bar open button

* tsc, lint, and fmt

src/components/AppHeader.tsx

@@ -1,7 +1,6 @@
 import { Toolbar } from '@src/Toolbar'
 import { CommandBarOpenButton } from '@src/components/CommandBarOpenButton'
 import ProjectSidebarMenu from '@src/components/ProjectSidebarMenu'
-import { RefreshButton } from '@src/components/RefreshButton'
 import UserSidebarMenu from '@src/components/UserSidebarMenu'
 import { isDesktop } from '@src/lib/isDesktop'
 import { type IndexLoaderData } from '@src/lib/types'
@@ -49,14 +48,9 @@ export const AppHeader = ({
       <div className="flex-grow flex justify-center max-w-lg md:max-w-xl lg:max-w-2xl xl:max-w-4xl 2xl:max-w-5xl">
         {showToolbar && <Toolbar />}
       </div>
-      <div className="flex items-center gap-1 py-1 ml-auto">
+      <div className="flex items-center gap-2 py-1 ml-auto">
         {/* If there are children, show them, otherwise show User menu */}
-        {children || (
-          <>
-            <CommandBarOpenButton />
-            <RefreshButton />
-          </>
-        )}
+        {children || <CommandBarOpenButton />}
         <UserSidebarMenu user={user} />
       </div>
     </header>