[frontend] Generate web token at runtime (#3462)

Rather than having that hardcoded one like before. Also adds
infrastructure which should make it easier to setup defaults at runtime
(e.g. GPU stuff?)

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3462
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

src/frontend_common/settings_generator.cpp

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <random>
+#include <frozen/string.h>
+#include "common/settings.h"
+#include "settings_generator.h"
+
+namespace FrontendCommon {
+
+void GenerateSettings() {
+    static std::random_device rd;
+
+    // Web Token //
+    auto &token_setting = Settings::values.eden_token;
+    if (token_setting.GetValue().empty()) {
+        static constexpr const size_t token_length = 48;
+        static constexpr const frozen::string token_set = "abcdefghijklmnopqrstuvwxyz";
+        static std::uniform_int_distribution<int> token_dist(0, token_set.size() - 1);
+        std::string result;
+
+        for (size_t i = 0; i < token_length; ++i) {
+            size_t idx = token_dist(rd);
+            result += token_set[idx];
+        }
+
+        token_setting.SetValue(result);
+    }
+}
+
+}