Give the Files tab a plain folder and the File sharing settings the share glyph

Both carried a folder with a downward arrow, which claims a direction the
feature does not have: transfers go both ways. The navigation icon now
follows its own label, Files, with a plain folder, and the settings tab
follows its, File sharing, with the share icon.

client/ui/frontend/src/modules/main/advanced/Navigation.tsx

@@ -1,6 +1,6 @@
 import { type ComponentType, type KeyboardEvent, useEffect, useRef } from "react";
 import { useTranslation } from "react-i18next";
-import { FolderDownIcon, Layers3Icon, type LucideProps, MonitorSmartphoneIcon } from "lucide-react";
+import { FolderIcon, Layers3Icon, type LucideProps, MonitorSmartphoneIcon } from "lucide-react";
 import { cn } from "@/lib/cn";
 import { useNavSection, type NavSection } from "@/contexts/NavSectionContext";
 import { useStatus } from "@/contexts/StatusContext";
@@ -43,7 +43,7 @@ export const Navigation = () => {
     tabs.push({
         value: "files",
         label: t("nav.files.title"),
-        icon: FolderDownIcon,
+        icon: FolderIcon,
     });
 
     const tabRefs = useRef<Record<string, HTMLButtonElement | null>>({});

client/ui/frontend/src/modules/settings/SettingsNavigation.tsx

@@ -6,10 +6,10 @@ import { useClientVersion } from "@/contexts/ClientVersionContext.tsx";
 import { useRestrictions } from "@/contexts/RestrictionsContext.tsx";
 import {
     BoltIcon,
-    FolderDownIcon,
     InfoIcon,
     LifeBuoyIcon,
     NetworkIcon,
+    Share2Icon,
     ShieldIcon,
     SlidersHorizontalIcon,
     SquareTerminalIcon,
@@ -52,7 +52,7 @@ export const SettingsNavigation = () => {
                 )}
                 <VerticalTabs.Trigger
                     value={"fileSharing"}
-                    icon={FolderDownIcon}
+                    icon={Share2Icon}
                     title={t("settings.tabs.fileSharing")}
                 />
                 {!features.disableProfiles && (