fix combobox option props mismatch and textarea prop spreading (#2550)

Author: rossedfort

Diff for: src/lib/holocene/combobox/combobox-option.svelte

@@ -4,7 +4,6 @@
   interface Props {
     selected?: boolean;
     disabled?: boolean;
-    multiselect?: boolean;
     label: string;
   }
 

Diff for: src/lib/holocene/combobox/combobox.svelte

@@ -494,7 +494,6 @@
 
     {#each list as option}
       <ComboboxOption
-        {multiselect}
         on:click={() => handleSelectOption(option)}
         selected={isSelected(option, value)}
         label={getDisplayValue(option)}

Diff for: src/lib/holocene/textarea.svelte

@@ -54,7 +54,7 @@
     <textarea
       bind:value
       class={merge(
-        'surface-primary min-h-fit w-full px-3 py-2 text-sm focus-visible:outline-none',
+        'surface-primary min-h-fit w-full px-3 py-2 text-sm placeholder:text-secondary focus-visible:outline-none',
         disabled && 'cursor-not-allowed opacity-50',
       )}
       {id}
@@ -68,6 +68,7 @@
       on:blur
       on:keydown|stopPropagation
       maxlength={maxLength > 0 ? maxLength : undefined}
+      {...$$restProps}
     />
   </div>
   <div class="flex justify-between gap-2">