Refactor code indexer (#9313)

* Refactor code indexer

* fix test

* fix test

* refactor code indexer

* fix import

* improve code

* fix typo

* fix test and make code clean

* fix lint

modules/indexer/issues/db.go

@@ -6,7 +6,7 @@ package issues
 
 import "code.gitea.io/gitea/models"
 
-// DBIndexer implements Indexer inteface to use database's like search
+// DBIndexer implements Indexer interface to use database's like search
 type DBIndexer struct {
 }
 

modules/indexer/issues/indexer.go

@@ -38,7 +38,7 @@ type SearchResult struct {
 	Hits  []Match
 }
 
-// Indexer defines an inteface to indexer issues contents
+// Indexer defines an interface to indexer issues contents
 type Indexer interface {
 	Init() (bool, error)
 	Index(issue []*IndexerData) error