refactor(db): move dialects to a standalone pkg

models/dialects/dialect_sqlite.go

@@ -1,4 +1,4 @@
-package model
+package dialects
 
 import (
 	"fmt"

models/init.go

@@ -9,6 +9,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/jinzhu/gorm"
 
+	_ "github.com/cloudreve/Cloudreve/v3/models/dialects"
 	_ "github.com/glebarez/go-sqlite"
 	_ "github.com/jinzhu/gorm/dialects/mssql"
 	_ "github.com/jinzhu/gorm/dialects/mysql"