Rename SlicerEditor extension to ScriptEditor

Author: Andras Lasso

SlicerEditor.json renamed to ScriptEditor.json

@@ -2,7 +2,7 @@
   "$schema": "https://raw.githubusercontent.com/Slicer/Slicer/main/Schemas/slicer-extension-catalog-entry-schema-v1.0.0.json#",
   "build_dependencies": [],
   "build_subdirectory": ".",
-  "category": "Python Scripting",
+  "category": "Developer Tools",
   "scm_revision": "main",
-  "scm_url": "https://github.com/SlicerMorph/SlicerEditor"
+  "scm_url": "https://github.com/SlicerMorph/SlicerScriptEditor"
 }