v0.321.0: FileBrowser's stale password and its own banners; one backup section on the Data tab; install address of an installed app

R-1101: the change-it line is gone for FileBrowser; in the generated state the page asks FileBrowser whether
the stored password still logs in (only its own 401/403 counts) and, refused, says so and offers the
new-password press. The rendered FileBrowser config switches off its update notice and its Install-app
prompt. The Data tab's backup part is one section in plain words (no off-drive, no PBS); the export
password eye is a text button. R-1095: /apps/{slug}/install of an installed app 302s to its settings tab.

Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/infra/infra.go

@@ -430,6 +430,9 @@ func RenderFileBrowserConfigKept(paths []settings.StoragePath, importSource bool
 server:
   port: 80
   baseURL: "/"
+  # The box updates FileBrowser (the pinned image); a household cannot, so its „An update is available!" is noise.
+  # backend/common/settings/structs.go:51 at gtstef/filebrowser:1.5.6-stable (v0.321.0).
+  disableUpdateCheck: true
   database: "/home/filebrowser/data/database.db"
   logging:
     - levels: "info|warning|error"
@@ -461,5 +464,9 @@ server:
     delete: false
     create: false
     download: true
+frontend:
+  # No „Install app" (PWA) prompt in the sidebar: the file manager is opened from the dashboard (v0.321.0;
+  # structs.go:294, sent to the page at backend/http/static.go:300).
+  disablePWAInstall: true
 `, sources)
 }