Display a badge to inform about case sensitivity (can be disabled by setting)

frontend/fic/src/lib/components/FlagKey.svelte

@@ -1,5 +1,6 @@
 <script>
  import {
+     Badge,
      Button,
      Icon,
      Spinner,
@@ -115,6 +116,15 @@
     {#if flag.found && flag.value}
         <span>{flag.value}</span>
     {/if}
+    {#if !flag.found && !$settings.hideCaseSensitivity && !flag.ignore_case}
+        <Badge
+            class="float-end"
+            color="danger"
+            title="Ce flag est sensible à la casse !"
+        >
+            aA
+        </Badge>
+    {/if}
     {#if !flag.found}
         {#each values as v, index}
             {#if !flag.choices}