Add screensaver to nspanel_blank.tft

And build a new tft with latest firmware and url for instructions.

custom_configuration/nspanel_blank_code/blank.txt

@@ -0,0 +1,57 @@
+Page blank
+    Attributes
+        ID                 : 0
+        Scope              : local
+        Dragging           : 0
+        Send Component ID  : disabled
+        Locked             : no
+        Swide up page ID   : disabled
+        Swide down page ID : disabled
+        Swide left page ID : disabled
+        Swide right page ID: disabled
+    
+    Events
+        Preinitialize Event
+            dim=100
+            printh 92
+            prints "nspanelevent",0
+            printh 00
+            prints "{\"page\": \"blank\", \"component\": \"currentpage\", \"value\": \"pagechange\", \"version\": \"2023.09.19\"}",0
+            printh 00
+            printh FF FF FF
+        
+        Touch Press Event
+            tm0.en=1
+        
+        Touch Release Event
+            tm0.en=1
+        
+QR Code qr0
+    Attributes
+        ID               : 1
+        Scope            : local
+        Dragging         : 0
+        Send Component ID: disabled
+        Text             : https://github.com/Blackymas/NSPanel_HA_Blueprint/blob/main/docs/en/nspanel_blank.md#what-to-do-after-installing-nspanel_blanktft
+        Max. Text Size   : 150
+    
+    Events
+        Touch Press Event
+            tm0.en=1
+        
+        Touch Release Event
+            tm0.en=1
+        
+Timer tm0
+    Attributes
+        ID         : 2
+        Scope      : local
+        Period (ms): 65500
+        Enabled    : yes
+    
+    Events
+        Timer Event
+            tm0.en=0
+            dim=0
+            page screensaver
+