core: Add a periodic donation request (#8981)

Will fire once in december and july. Disableable with `ecosystem:no_donation:nag`

src/helpers/fs/FsUtils.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include <optional>
+#include <string>
+
+namespace NFsUtils {
+    // Returns the path to the hyprland directory in data home.
+    std::optional<std::string> getDataHome();
+
+    std::optional<std::string> readFileAsString(const std::string& path);
+
+    // overwrites the file if exists
+    bool writeToFile(const std::string& path, const std::string& content);
+
+    bool executableExistsInPath(const std::string& exe);
+};