update project dependencies and add schemas

gtk4.nix

@@ -21,4 +21,9 @@ in pkgs.mkShell {
       python-pkgs.debian
     ]))
   ];
+  shellHook = ''
+    export GSETTINGS_SCHEMAS_PATH="$(pwd "$0")/schemas:$GSETTINGS_SCHEMAS_PATH"
+    export GSETTINGS_SCHEMA_DIR="$(pwd "$0")/schemas:$GSETTINGS_SCHEMA_DIR"
+    export XDG_DATA_DIRS="$(pwd "$0")/schemas:$XDG_DATA_DIRS"
+  '';
 }

schemas/com.asandikci.pardus-security-center.gschema.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<schemalist>
+  <schema id="com.asandikci.pardus-security-center" path="/com/asandikci/pardus-security-center/">
+      <key name="first-run" type="b">
+          <default>true</default>
+          <summary>First Run</summary>
+          <description>Did application run before or is this first run?</description>
+      </key>
+  </schema>
+</schemalist>

schemas/compile-schemas.sh

@@ -0,0 +1,2 @@
+cd $(dirname "$0")
+glib-compile-schemas .