feat: set default encoding/charset set database on creation(pg and mysql)

Signed-off-by: Pranav C <pranavxc@gmail.com>

packages/nocodb/src/lib/db/sql-client/lib/mysql/mysql.queries.ts

@@ -130,7 +130,7 @@ AND t.table_name=?;`,
   },
   createDatabaseIfNotExists: {
     default: {
-      sql: `create database if not exists ??`,
+      sql: `create database if not exists ??  CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci`,
       paramsHints: ['database'],
     },
   },

packages/nocodb/src/lib/db/sql-client/lib/pg/PgClient.ts

@@ -468,7 +468,7 @@ class PGClient extends KnexClient {
       }
       if (rows.length === 0) {
         log.debug('creating database:', args);
-        await tempSqlClient.raw(`CREATE DATABASE ??`, [args.database]);
+        await tempSqlClient.raw(`CREATE DATABASE ?? ENCODING 'UTF8'`, [args.database]);
       }
 
       // if (this.connectionConfig.searchPath && this.connectionConfig.searchPath[0]) {