Add type="button" to inline chip close buttons

[Copilot]

Close buttons in inline chip rendering defaulted to type="submit", causing unintended form submissions when used within forms.

Changes:

• Added type="button" attribute to close buttons in both multi-select and single-select inline chip rendering

<button
  v-if="removable"
  type="button"
  class="inline-chip-close"
  :disabled="disabled ?? false"
  @click.stop="handleSelect(item.value)"
>
  <IconX class="inline-chip-close-icon" />
</button>

Addresses feedback from #661.

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