feat: when adding new filter set logical op based on existing siblings

packages/nc-gui/components/smartsheet/toolbar/ColumnFilter.vue

@@ -421,6 +421,7 @@ const onLogicalOpUpdate = async (filter: Filter, index: number) => {
                     dropdown-class-name="nc-dropdown-filter-logical-op-group"
                     @click.stop
                     @change="saveOrUpdate(filter, i)"
+                    :disabled="(i > 1 && !isLogicalOpChangeAllowed)"
                   >
                     <a-select-option v-for="op in logicalOps" :key="op.value" :value="op.value">
                       <div class="flex items-center w-full justify-between w-full gap-2">

packages/nc-gui/composables/useViewFilters.ts

@@ -198,13 +198,15 @@ export function useViewFilters(
   }
 
   const placeholderFilter = (): Filter => {
+    const logicalOps = new Set(filters.value.slice(1).map((filter) => filter.logical_op))
+
     return {
       comparison_op: comparisonOpList(options.value?.[0].uidt as UITypes).filter((compOp) =>
         isComparisonOpAllowed({ fk_column_id: options.value?.[0].id }, compOp),
       )?.[0].value as FilterType['comparison_op'],
       value: '',
       status: 'create',
-      logical_op: 'and',
+      logical_op: logicalOps.size === 1 ? logicalOps.values().next().value :'and' ,
     }
   }