UI: tombol GitHub + Donasi, tombol Open per shortcut, aksen gradien

- Footer: Check for Updates, GitHub (github.com/oxpoe/lazyrun), Donate (donasi.oxpoe.qzz.io)
- Baris shortcut: tombol play untuk menjalankan (pakai exec_args hasil install)
- metadata shortcut menyimpan exec_args; ada fallback ke binary/URL untuk data lama
- Chip jumlah shortcut di header daftar + garis gradien brand di bawah header
- README: link repo & donasi absolut

internal/shortcut/executable.go

@@ -71,6 +71,7 @@ func InstallExecutable(o ExecOptions) (store.Shortcut, error) {
 		Slug:        sl,
 		Name:        name,
 		Type:        store.TypeExecutable,
+		ExecArgs:    entry.ExecArgs,
 		BinaryPath:  binDst,
 		IconPath:    iconPath,
 		DesktopPath: deskDst,
@@ -156,6 +157,7 @@ func InstallWebApp(o WebOptions) (store.Shortcut, error) {
 		Type:        store.TypeWebApp,
 		URL:         pageURL,
 		Browser:     strings.Join(o.Browser.Exec, " "),
+		ExecArgs:    entry.ExecArgs,
 		IconPath:    iconPath,
 		DesktopPath: deskDst,
 		Targets:     store.Targets{Menu: o.Menu, Desktop: o.Desktop},