fix: array-table/main.scss mixed-decls deprecation warning on [email protected]

[veaba]

see:
https://sass-lang.com/documentation/breaking-changes/mixed-decls/#example-mixed-declarations-opt-in-scss

warning report：

Deprecation Warning: Sass's behavior for declarations that appear after nested
rules will be changing to match the behavior specified by CSS in an upcoming
version. To keep the existing behavior, move the declaration above the nested
rule. To opt into the new behavior, wrap the declaration in `& {}`.

More info: https://sass-lang.com/d/mixed-decls

    ╷
47  │ ┌           &.#{$css-prefix}formily-item-warning-help {
48  │ │             color: $form-warning-color;
49  │ │           }
    │ └─── nested rule
... │
54  │             top: 100%;
    │             ^^^^^^^^^ declaration
    ╵
    stdin 54:11  root stylesheet

issues

• trying ignore mixed-decls warning but still got these warning in Vite(5.3.1). sass/dart-sass#2280
• Use the modern SASS compiler API vitejs/vite#7116

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