Simplify page load

To reduce the chances of a serial buffer overflow

hmi/dev/nspanel_eu_code/keyb_num.txt

@@ -12,11 +12,11 @@ Page keyb_num
     
     Events
         Preinitialize Event
+            dim=brightness
             if(api==0)
             {
                 page page_id.val
             }
-            vis unavailable,0
             printh 92
             prints "current_page",0
             printh 00
@@ -88,16 +88,6 @@ Text title
         Text               : Alarm
         Max. Text Size     : 30
     
-Text unavailable
-    Attributes
-        ID                 : 24
-        Scope              : local
-        Dragging           : 0
-        Send Component ID  : disabled
-        Associated Keyboard: none
-        Text               : 
-        Max. Text Size     : 1
-    
 Button b1
     Attributes
         ID               : 3
@@ -306,26 +296,3 @@ Button bview
                 pin.pw=1
             }
         
-Timer wakeup_timer
-    Attributes
-        ID         : 23
-        Scope      : local
-        Period (ms): 100
-        Enabled    : yes
-    
-    Events
-        Timer Event
-            if(dim<brightness)
-            {
-                dimdelta=brightness-dim
-                dimdelta/=10
-                if(dimdelta<1)
-                {
-                    dimdelta=1
-                }
-                dim+=dimdelta
-            }else
-            {
-                wakeup_timer.en=0
-            }
-