fix: separate LXC package checks from installation

AppImage/messages/en/common.json

@@ -1332,7 +1332,14 @@
     },
     "updates": {
       "osPackagesTitle": "OS packages",
-      "checkNow": "Check now",
+      "checkNow": "Check updates",
+      "checkSystemPackages": "Check system packages",
+      "checkInProgress": "Check in progress",
+      "refreshCheckHelp": "Refreshes package indexes and checks pending updates. Nothing is installed. A stopped container is temporarily started and stopped again after the check.",
+      "notCheckedYet": "Updates have not been checked yet.",
+      "checkStillRunning": "The check is still running. The monitor will restore the container's original state when it finishes.",
+      "checkBeforeUpdate": "Check updates first",
+      "startBeforeCheck": "Start the container, then check for updates. No badge does not mean there are no updates.",
       "checkReadOnlyHelp": "Read current OS and pending packages from existing indexes. No installation or package index refresh.",
       "checkCooldown": "Check already running or recently requested. Try again in {seconds} seconds.",
       "checkStale": "Check outdated",
@@ -1380,6 +1387,9 @@
       "applyUpdate": "Apply update",
       "upToDate": "Up to date",
       "runUpdater": "Run updater",
+      "runCustomCommand": "Run custom command",
+      "installedVersionUnverified": "Installed version is unverified. Update availability could not be confirmed.",
+      "versionStatusUnknown": "Update availability is unverified. Version information is unavailable or incomplete.",
       "terminalTitle": "Apply updates — CT {vmid}",
       "terminalDescriptionOs": "Applying OS package updates inside the container...",
       "terminalDescriptionApp": "Running the application updater inside the container...",
@@ -1483,9 +1493,12 @@
       "notConfigured": "Not configured.",
       "configure": "Configure",
       "edit": "Edit",
-      "apply": "Apply updates",
+      "apply": "Start bulk update",
       "osTarget": "OS",
       "osRequired": "Required for a bulk update.",
+      "osDockerScope": "OS updates also include Docker when it is installed as a system package.",
+      "unverifiedTargetsHelp": "Update availability for some selected items is unverified. Starting will run the selected update methods even without a confirmed new version.",
+      "dockerImageMethod": "Docker image",
       "includesDependencies": "Also includes declared dependencies: {names}",
       "noMethod": "No executable update method is available.",
       "staleTarget": "This selection is no longer available. Remove it before saving.",