Kde/patches: add spectacle patches

roles/kde/programs/default.nix

@@ -8,6 +8,7 @@
     ./konsole.nix
     ./kwin.nix
     ./baloo.nix
+    ./spectacle.nix
   ];
 
   # Enable the kde partition manager

roles/kde/programs/spectacle.nix

@@ -0,0 +1,24 @@
+{...}: {
+  nixpkgs.overlays = [
+    (
+      final: prev: {
+        kdePackages = prev.kdePackages.overrideScope (
+          kFinal: kPrev: {
+            # Needed for OCR
+            spectacle = kPrev.spectacle.overrideAttrs (old: {
+              nativeBuildInputs = old.nativeBuildInputs ++ [final.pkg-config];
+              buildInputs = with final;
+                old.buildInputs
+                ++ [
+                  tesseract
+                  leptonica
+                  libarchive
+                  curl
+                ];
+            });
+          }
+        );
+      }
+    )
+  ];
+}