Fix misspell issues (#23905)

* Fix misspell issues

See,
$ golangci-lint run --timeout 10m --disable-all -E misspell ./...

Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>

* Fix codespell issues

See,
$ codespell -S './.git*' -L 'uint,thru,pres,unknwon,serie,referer,uptodate,durationm'

Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>

* ci please?

* non-empty commit - ci?

* Trigger build

Co-authored-by: bergquist <carl.bergquist@gmail.com>
Co-authored-by: Kyle Brandt <kyle@grafana.com>

pkg/services/notifications/email.go

@@ -5,13 +5,13 @@ import (
 	"github.com/grafana/grafana/pkg/setting"
 )
 
-// AttachedFile is struct representating email attached files
+// AttachedFile struct represents email attached files.
 type AttachedFile struct {
 	Name    string
 	Content []byte
 }
 
-// Message is representation of the email message
+// Message is representation of the email message.
 type Message struct {
 	To            []string
 	SingleEmail   bool