EMI synthetic recipe warning fix (GregTechCEu#4732)

Author: Mqrius

src/main/java/com/gregtechceu/gtceu/integration/emi/circuit/GTProgrammedCircuitCategory.java

@@ -53,7 +53,7 @@ public int getDisplayWidth() {
 
         @Override
         public @Nullable ResourceLocation getId() {
-            return GTCEu.id("programmed_circuit");
+            return GTCEu.id("/programmed_circuit");
         }
 
         @Override

src/main/java/com/gregtechceu/gtceu/integration/emi/multipage/MultiblockInfoEmiRecipe.java

@@ -44,7 +44,7 @@ public EmiRecipeCategory getCategory() {
 
     @Override
     public @Nullable ResourceLocation getId() {
-        return definition.getId();
+        return definition.getId().withPrefix("/");
     }
 
     @Override

src/main/java/com/gregtechceu/gtceu/integration/emi/oreprocessing/GTEmiOreProcessing.java

@@ -26,7 +26,7 @@ public EmiRecipeCategory getCategory() {
 
     @Override
     public @Nullable ResourceLocation getId() {
-        return material.getResourceLocation();
+        return material.getResourceLocation().withPrefix("/");
     }
 
     @Override