Mark compatible with Cura 5.8

Author: fieldOfView

plugin.json

@@ -1,15 +1,15 @@
 {
     "name": "Sidebar GUI",
     "author": "fieldOfView",
-    "version": "4.6.5",
+    "version": "4.6.6-DEV",
     "minimum_cura_version": "4.0",
-    "maximum_cura_version": "5.7",
+    "maximum_cura_version": "5.8",
     "description": "Provides an alternative, setting-centric interface based around a fixed sidebar",
     "api": "6.0.0",
     "supported_sdk_versions": [
         "6.0.0", "6.1.0", "6.2.0", "6.3.0",
         "7.0.0", "7.1.0", "7.2.0", "7.3.0", "7.4.0", "7.5.0", "7.6.0", "7.7.0", "7.8.0", "7.9.0",
-        "8.0.0", "8.1.0", "8.2.0", "8.3.0", "8.4.0", "8.5.0", "8.6.0", "8.7.0"
+        "8.0.0", "8.1.0", "8.2.0", "8.3.0", "8.4.0", "8.5.0", "8.6.0", "8.7.0", "8.8.0"
     ],
     "i18n-catalog": "cura"
 }