Streamline usage of g-code (vs. GCode, Gcode, G-code, gcode, etc.)

This makes it all the same. It is something that came up in our translation pass this time.

Contributes to issue CURA-4883.

plugins/GCodeProfileReader/GCodeProfileReader.py

@@ -71,7 +71,7 @@ class GCodeProfileReader(ProfileReader):
         try:
             json_data = json.loads(serialized)
         except Exception as e:
-            Logger.log("e", "Could not parse serialized JSON data from GCode %s, error: %s", file_name, e)
+            Logger.log("e", "Could not parse serialized JSON data from g-code %s, error: %s", file_name, e)
             return None
 
         profiles = []

plugins/GCodeProfileReader/plugin.json

@@ -1,5 +1,5 @@
 {
-    "name": "GCode Profile Reader",
+    "name": "G-code Profile Reader",
     "author": "Ultimaker B.V.",
     "version": "1.0.0",
     "description": "Provides support for importing profiles from g-code files.",