feat: execute selected sql (#13)

Co-authored-by: SuLe <sule@SuLedeMacBook-Air.local>

src/types/database.ts

@@ -95,6 +95,7 @@ export interface QueryTab {
   connectionId: string;
   database: string;
   sql: string;
+  lastExecutedSql?: string;
   result?: QueryResult;
   isExecuting: boolean;
   mode: "data" | "query" | "redis" | "mongo";