fix: update materials from fdm_materials (CURA-2567)

resources/materials/generic_nylon.xml.fdm_material

@@ -9,7 +9,7 @@ Generic Nylon profile. Serves as an example file, data in this file is not corre
             <material>Nylon</material>
             <color>Generic</color>
         </name>
-        <GUID>35ebb8df-66d2-41cd-9662-b7d96b9c2cbd</GUID>
+        <GUID>28fb4162-db74-49e1-9008-d05f1e8bef5c</GUID>
         <version>1</version>
         <color_code>#3DF266</color_code>
     </metadata>
@@ -20,7 +20,7 @@ Generic Nylon profile. Serves as an example file, data in this file is not corre
     <settings>
         <setting key="print temperature">250</setting>
         <setting key="heated bed temperature">60</setting>
-        <setting key="standby temperature">175</setting>
+        <setting key="standby temperature">100</setting>
 
         <machine>
             <machine_identifier manufacturer="Ultimaker" product="Ultimaker 2+"/>

resources/materials/ultimaker_pla_silver-metallic.xml.fdm_material

@@ -36,6 +36,7 @@ Automatically generated PLA profile. Data in this file may not be not correct.
             <machine_identifier manufacturer="Ultimaker" product="Ultimaker 2"/>
             <machine_identifier manufacturer="Ultimaker" product="Ultimaker 2 Go"/>
             <machine_identifier manufacturer="Ultimaker" product="Ultimaker 2 Extended"/>
+            <setting key="standby temperature">150</setting>
             <setting key="processing temperature graph">
                 <point flow="2" temperature="180"/>
                 <point flow="10" temperature="230"/>