refactor(color-scheme): remove unused composable

Removed the unused composable 'useColorScheme.js'.

src/features/colorScheme/composables/useColorScheme.js

@@ -1,39 +0,0 @@
-/*
-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.
-*/
-
-export const useColorScheme = function () {
-    const getColorScheme = function () {
-        let colorScheme = localStorage.getItem('colorScheme') || 'auto';
-        if (!(colorScheme === 'dark' || colorScheme === 'light' || colorScheme === 'auto')) {
-            colorScheme = 'auto';
-        };
-        return colorScheme;
-    };
-
-    const updateColorScheme = function (newScheme) {
-        let actualNewScheme = newScheme;
-        if (!(actualNewScheme === 'dark' || actualNewScheme === 'light' || actualNewScheme === 'auto')) {
-            actualNewScheme = 'auto';
-        };
-
-        localStorage.setItem('colorScheme', actualNewScheme);
-    };
-
-    return {
-        getColorScheme,
-        updateColorScheme
-    };
-};