Display ° when moving sliders

Solves #1569

advanced/hmi/nspanel_eu_code/boot.txt

@@ -104,7 +104,7 @@ Text tft_version
         Dragging           : 0
         Send Component ID  : on press and release
         Associated Keyboard: none
-        Text               : 4.2beta.4
+        Text               : 4.2beta.5
         Max. Text Size     : 9
     
 Text esph_version

advanced/hmi/nspanel_eu_code/climate.txt

@@ -166,7 +166,7 @@ Variable (string) temp_unit
     Attributes
         ID            : 50
         Scope         : local
-        Text          : 
+        Text          : °
         Max. Text Size: 10
     
 Variable (int32) temp_low_max
@@ -606,7 +606,6 @@ Slider climateslider
     
     Events
         Touch Release Event
-            active_slider.val=0
             temp_number0.val=climateslider.val*temp_step.val
             temp_number0.val+=temp_offset.val
             va0.val=temp_number0.val/10
@@ -614,6 +613,8 @@ Slider climateslider
             va0.val=temp_number0.val%10
             covx va0.val,va1.txt,0,0
             target_high.txt+="."+va1.txt
+            target_high.txt+=temp_unit.txt
+            active_slider.val=0
             timer0.en=1
         
 Button button_back