Remove not neccecarly pwa sw configs and codes

frontend/composables/global/usePwa.ts

@@ -1,19 +0,0 @@
-export const usePWA = () => {
-    const isInstalledAsPWA = ref(false);
-
-    const checkPWAInstallation = () => {
-        const isStandalone = window.matchMedia(
-            "(display-mode: standalone)"
-        ).matches;
-        const isIOSPWA = (window.navigator as any).standalone;
-        isInstalledAsPWA.value = isStandalone || isIOSPWA;
-    };
-
-    onMounted(() => {
-        checkPWAInstallation();
-    });
-
-    return {
-        isInstalledAsPWA,
-    };
-};