add quick answers

backend/src/models/QuickAnswer.ts

@@ -0,0 +1,32 @@
+import {
+  Table,
+  Column,
+  DataType,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey,
+  AutoIncrement
+} from "sequelize-typescript";
+
+@Table
+class QuickAnswer extends Model<QuickAnswer> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @Column(DataType.TEXT)
+  shortcut: string;
+
+  @Column(DataType.TEXT)
+  message: string;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+}
+
+export default QuickAnswer;