feat(settings): add composable for settings values

Added the composable useSettings that provides the function getSetting.
This function returns the set value of the setting, or otherwise the
default value. If there is no default value, it returns undefined.

src/features/settings/composables/useSettings.js

@@ -0,0 +1,43 @@
+/*
+Copyright 2026 Seekra
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { useSettingsStore } from '../stores/settingsStore';
+import { getSettingRecursively } from '../utils/getSetting';
+import { loadSettingsConfig } from '../utils/settingsParser';
+
+/**
+ * Provides access to the stored settings.
+ */
+export const useSettings = function useSettings () {
+    /**
+     * Returns the value of a specific setting.
+     * @param {string[]} key - The settings key.
+     * @return The value of the setting.
+     */
+    const getSetting = async function getSetting (key) {
+        const settingsStore = useSettingsStore();
+
+        const settings = await loadSettingsConfig();
+        return (
+            settingsStore.get(key) ??
+            getSettingRecursively(
+                key, settings.contents ?? []
+            )?.default
+        );
+    };
+
+    return { getSetting };
+};