fix(nix-monitor): hide home-manager if there is empty output

nix-monitor/nix_monitor_service.luau

@@ -146,20 +146,20 @@ function checkGenerations()
     setState("lastGenerationsCheckTime", os.time())
 
     noctalia.runAsync(nixosGenerationsCmd, function(result)
-        setState("nixosGenerations", result.stdout)
+        setState("nixosGenerations", noctalia.string.trim(result.stdout))
     end)
 
     noctalia.runAsync(nixosCurrentGenCmd, function(result)
-        setState("nixosCurrentGen", result.stdout)
+        setState("nixosCurrentGen", noctalia.string.trim(result.stdout))
     end)
 
     if getState("hasHomeManager") then
         noctalia.runAsync(hmGenerationsCmd, function(result)
-            setState("hmGenerations", result.stdout)
+            setState("hmGenerations", noctalia.string.trim(result.stdout))
         end)
 
         noctalia.runAsync(hmCurrentGenCmd, function(result)
-            setState("hmCurrentGen", result.stdout)
+            setState("hmCurrentGen", noctalia.string.trim(result.stdout))
         end)
     end
 end

nix-monitor/panel.luau

@@ -110,7 +110,8 @@ local function render()
         statLabel(`{tr("panel.current")}: {getState("nixosCurrentGen")}`, "device-desktop-check")
     }
 
-    if getState("hasHomeManager") then
+    if getState("hasHomeManager") and getState("hmGenerations") ~= ""
+        and getState("hmCurrentGen") ~= "" then
         table.insert(generationItems,
             statLabel(`HM: {getState("hmGenerations")}`, "home")
         )