[Refactor] Make jei description respect of mte namespace (GregTechCEu#2890)

Author: MCTian-mi

src/main/java/gregtech/api/metatileentity/multiblock/MultiblockControllerBase.java

@@ -600,7 +600,8 @@ private List<MultiblockShapeInfo> repetitionDFS(List<MultiblockShapeInfo> pages,
 
     @SideOnly(Side.CLIENT)
     public String[] getDescription() {
-        String key = String.format("gregtech.multiblock.%s.description", metaTileEntityId.getPath());
+        String key = String.format("%s.multiblock.%s.description", metaTileEntityId.getNamespace(),
+                metaTileEntityId.getPath());
         return I18n.hasKey(key) ? new String[] { I18n.format(key) } : new String[0];
     }