fix(ServerSettingsModal): invert ListToggle compact prop so icon matches state

ListToggle's `compact` prop represents the list's *current* compact state:
true means "currently compact" and renders the expand icon to advertise
the action (open up). The settings modal was passing
`compact={allExpanded}` — exactly inverted. When all sections were open
it showed the expand icon (suggesting "open more") and when collapsed it
showed the collapse icon, opposite of every other ListToggle caller in
the app.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: cliffhall

clients/web/src/components/groups/ServerSettingsModal/ServerSettingsModal.tsx

@@ -109,7 +109,7 @@ export function ServerSettingsModal({
       <Stack gap="md">
         <Group justify="space-between" wrap="nowrap">
           <ListToggle
-            compact={allExpanded}
+            compact={!allExpanded}
             variant="subtle"
             onToggle={handleToggleAll}
           />