Eliminate chip rendering duplication in SInputDropdown inline search

[Copilot]

Addresses code duplication between array and single-value chip rendering in the inline search feature (lines 391-440). The two template blocks were nearly identical, differing only in iteration and variable naming.

Changes:

• Added selectedChips computed property that normalizes both single and array values to always return an array, eliminating the need for separate rendering logic
• Unified chip rendering into a single v-for loop that handles both single-select and multi-select modes

Before:

<template v-if="Array.isArray(selected)">
  <div v-for="(item, i) in selected">
    <!-- chip markup -->
  </div>
</template>
<template v-else-if="selected">
  <div class="inline-chip">
    <!-- identical chip markup -->
  </div>
</template>

After:

<div v-for="(item, i) in selectedChips">
  <!-- chip markup (single implementation) -->
</div>

Reduces code by ~40 lines while preserving all functionality.

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