Refactor(frontend): Refactor frontend using Lit

Refactor(database): use gorm+sqlite instead of bbolt
Feat: Add delete short link functionality
Fix: Load correct configuration template during meta config conversion

model/short_link.go

@@ -1,8 +1,8 @@
 package model
 
 type ShortLink struct {
-	Hash            string
-	Url             string
+	ID              string        `gorm:"unique"`
+	Config          ConvertConfig `gorm:"serializer:json"`
 	Password        string
 	LastRequestTime int64
 }