Feat: Add memory multi-select dropdown to recall and message operator forms. #4213 (#12106)

### What problem does this PR solve?

Feat: Add memory multi-select dropdown to recall and message operator
forms. #4213

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/locales/en.ts

@@ -2128,6 +2128,8 @@ Important structured information may include: names, dates, locations, events, k
         immediately: 'Accepted response',
         streaming: 'Final response',
       },
+      saveToMemory: 'Save to memory',
+      memory: 'Memory',
     },
     llmTools: {
       bad_calculator: {