fix: fix layout bugs in admin and update translation files

app/Language/en/Admin.php

app/Language/en/AdminNavigation.php

app/Views/_assets/styles/radioBtn.css

app/Views/admin/_layout.php

app/Views/admin/_sidebar.php

app/Views/admin/dashboard.php

app/Views/admin/episode/create.php

app/Views/admin/episode/edit.php

app/Views/admin/my_account/change_password.php

app/Views/admin/my_account/view.php

app/Views/admin/podcast/_sidebar.php

app/Views/admin/podcast/create.php

app/Views/admin/podcast/edit.php