feat(dropdowns): added searchbox to the operation dropdown for all blocks (#2266)

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/dropdown/dropdown.tsx

@@ -363,6 +363,8 @@ export function Dropdown({
     )
   }, [multiSelect, multiValues, optionMap])
 
+  const isSearchable = subBlockId === 'operation'
+
   return (
     <Combobox
       options={comboboxOptions}
@@ -375,14 +377,15 @@ export function Dropdown({
       editable={false}
       onOpenChange={(open) => {
         if (open) {
-          // Fetch options when the dropdown is opened to ensure freshness
           void fetchOptionsIfNeeded()
         }
       }}
       overlayContent={multiSelectOverlay}
       multiSelect={multiSelect}
       isLoading={isLoadingOptions}
       error={fetchError}
+      searchable={isSearchable}
+      searchPlaceholder='Search operations...'
     />
   )
 }