Allow multiselect component and field to support text values

packages/bbui/src/Form/Core/Multiselect.svelte

@@ -17,12 +17,13 @@
 
   const dispatch = createEventDispatcher()
 
-  $: selectedLookupMap = getSelectedLookupMap(value)
+  $: arrayValue = Array.isArray(value) ? value : [value].filter(x => !!x)
+  $: selectedLookupMap = getSelectedLookupMap(arrayValue)
   $: optionLookupMap = getOptionLookupMap(options)
 
-  $: fieldText = getFieldText(value, optionLookupMap, placeholder)
+  $: fieldText = getFieldText(arrayValue, optionLookupMap, placeholder)
   $: isOptionSelected = optionValue => selectedLookupMap[optionValue] === true
-  $: toggleOption = makeToggleOption(selectedLookupMap, value)
+  $: toggleOption = makeToggleOption(selectedLookupMap, arrayValue)
 
   const getFieldText = (value, map, placeholder) => {
     if (Array.isArray(value) && value.length > 0) {
@@ -81,7 +82,7 @@
   {readonly}
   {fieldText}
   {options}
-  isPlaceholder={!value?.length}
+  isPlaceholder={!arrayValue.length}
   {autocomplete}
   {isOptionSelected}
   {getOptionLabel}

packages/bbui/src/Table/ArrayRenderer.svelte

@@ -5,8 +5,9 @@
 
   const displayLimit = 5
 
-  $: badges = Array.isArray(value) ? value.slice(0, displayLimit) : []
-  $: leftover = (value?.length ?? 0) - badges.length
+  $: arrayValue = Array.isArray(value) ? value : [value].filter(x => !!x)
+  $: badges = arrayValue.slice(0, displayLimit)
+  $: leftover = arrayValue.length - badges.length
 </script>
 
 {#each badges as badge}