add missing DEB & RPM dependencies (#642)

* add DEB dependecy for desktop files

* add RMP dependency

Author: wojcik91

src-tauri/tauri.conf.json

@@ -61,13 +61,19 @@
           "../control/postinst": "../resources-linux/postinst",
           "../control/prerm": "../resources-linux/prerm",
           "../control/postrm": "../resources-linux/postrm"
-        }
+        },
+        "depends": [
+          "desktop-file-utils"
+        ]
       },
       "rpm": {
         "files": {
           "/usr/sbin/defguard-service": "target/release/defguard-service",
           "/lib/systemd/system/defguard-service.service": "../resources-linux/defguard-service.service"
         },
+        "depends": [
+          "desktop-file-utils"
+        ],
         "postInstallScript": "../resources-linux/postinst",
         "preRemoveScript": "../resources-linux/prerm",
         "postRemoveScript": "../resources-linux/postrm"