[2.x] Add section title aside slot

[dillingham]

PR allows content in the top right of the jet-section-title component

Got inspiration from Laravel Vapor's UI & found it very useful as a default

I referred to it as aside incase anyone moves the slot to the left for RTL

---

Works nicely with / without, mobile, jet-button, jet-dropdown & form-select

---

Vue

<jet-section-title class="mb-5">
    <template #title>Posts</template>
    <template #description>Here are the posts</template>
    <template #aside>
        <jet-secondary-button @click="$inertia.visit(route('posts.create'))">
            New Post
        </jet-secondary-button>
    </template>
</jet-section-title>

Livewire

<x-jet-section-title>
    <x-slot name="title">Posts</x-slot>
    <x-slot name="description">Here are the posts</x-slot>
    <x-slot name="aside">
        <x-jet-secondary-button>
            Create Post
        </x-jet-secondary-button>
    </x-slot>
</x-jet-section-title>