ui: Update to sveltekit 1.0 + fix warnings

frontend/ui/src/lib/components/ExerciceFlags.svelte

@@ -200,7 +200,7 @@
                 {#each flags as flag ((flag.type?flag.type:"i") + flag.id)}
                     {#if !flag.type && !flag.id}
                         <div class="form-group mb-3">
-                            <label class="{flag.variant?('text-'+flag.variant):''}">{@html flag.label}</label>
+                            <span class="{flag.variant?('text-'+flag.variant):''}">{@html flag.label}</span>
                         </div>
                     {:else if flag.type == "mcq"}
                         <FlagMCQ

frontend/ui/src/lib/components/ExerciceVideo.svelte

@@ -11,6 +11,7 @@
 
 <CardBody class="text-indent ratio ratio-16x9">
     {#if uri.length > 0 && uri[0] === '/'}
+        <!-- svelte-ignore a11y-media-has-caption -->
         <video controls src={uri} />
     {:else}
         <iframe type="text/html" src="{uri.replace('$RFILES$', base+'/resolution')}" class="embed-responsive-item" title="Vidéo de résolution">

frontend/ui/src/lib/components/HeaderPartners.svelte

@@ -17,7 +17,7 @@
         {#each $challengeInfo.partners as partner, index}
             <CarouselItem bind:activeIndex={activePartner} itemIndex={index} class="h-100 text-end">
                 {#if partner.href}
-                    <a href="{partner.href}" target="_blank" class="h-100">
+                    <a href="{partner.href}" target="_blank" rel="noreferrer" class="h-100">
                         <img src={partner.img.replace('$FILES$', base + '/files')} class="h-100" alt={partner.alt}>
                     </a>
                 {:else}

frontend/ui/src/lib/components/RegistrationFormCreateTeam.svelte

@@ -61,6 +61,7 @@
         <label for="teamName" class="col col-form-label">Nom d'équipe</label>
         <div class="col-sm-10">
 	    <div class="input-group">
+                <!-- svelte-ignore a11y-autofocus -->
 	        <input type="text" class="form-control" id="teamName" bind:value={value.teamName} placeholder="" autofocus required>
 	        <Button color="info" type="button" on:click={validateTeamName} disabled={jTeam}>Valider</Button>
 	        <div class="invalid-feedback">

frontend/ui/src/lib/components/RegistrationRowMember.svelte

@@ -15,6 +15,7 @@
 
 <Row class="form-group my-3">
     <div class="col-sm">
+        <!-- svelte-ignore a11y-autofocus -->
 	<input type="text" class="form-control" bind:value={member.lastname} placeholder="Nom" autofocus>
     </div>
     <div class="col-sm">

frontend/ui/src/lib/components/ScoreGrid.svelte

@@ -28,7 +28,7 @@
     </CardBody>
 {:then scores}
     {#if scores}
-        <Table class="mb-0" hover striped rows={scores} let:row>
+        <Table class="{className} mb-0" hover striped rows={scores} let:row>
             <Column header="Heure">
                 <DateFormat date={new Date(row.time)} />
             </Column>