Fix various documentation, user-facing, and source comment typos (#16367)

* Fix various doc, user-facing, and source comment typos

Found via `codespell -q 3 -S ./options/locale,./vendor -L ba,pullrequest,pullrequests,readby`

modules/validation/helpers.go

@@ -92,7 +92,7 @@ func IsValidExternalURL(uri string) bool {
 		return false
 	}
 
-	// TODO: Later it should be added to allow local network IP addreses
+	// TODO: Later it should be added to allow local network IP addresses
 	//       only if allowed by special setting
 
 	return true

modules/validation/helpers_test.go

@@ -24,12 +24,12 @@ func Test_IsValidURL(t *testing.T) {
 			valid:       false,
 		},
 		{
-			description: "Loobpack IPv4 URL",
+			description: "Loopback IPv4 URL",
 			url:         "http://127.0.1.1:5678/",
 			valid:       true,
 		},
 		{
-			description: "Loobpack IPv6 URL",
+			description: "Loopback IPv6 URL",
 			url:         "https://[::1]/",
 			valid:       true,
 		},
@@ -61,7 +61,7 @@ func Test_IsValidExternalURL(t *testing.T) {
 			valid:       true,
 		},
 		{
-			description: "Loobpack IPv4 URL",
+			description: "Loopback IPv4 URL",
 			url:         "http://127.0.1.1:5678/",
 			valid:       false,
 		},

modules/validation/refname_test.go

@@ -12,7 +12,7 @@ import (
 
 var gitRefNameValidationTestCases = []validationTestCase{
 	{
-		description: "Referece contains only characters",
+		description: "Reference name contains only characters",
 		data: TestForm{
 			BranchName: "test",
 		},