[bug] Fix an import statement in the gen template (#2426)

The package was renamed from langs to language.

internal/config/gen/gen.go

@@ -67,7 +67,7 @@ func main() {
 	fmt.Fprint(output, "import (\n")
 	fmt.Fprint(output, "\t\"time\"\n\n")
 	fmt.Fprint(output, "\t\"codeberg.org/gruf/go-bytesize\"\n")
-	fmt.Fprint(output, "\t\"github.com/superseriousbusiness/gotosocial/internal/langs\"\n")
+	fmt.Fprint(output, "\t\"github.com/superseriousbusiness/gotosocial/internal/language\"\n")
 	fmt.Fprint(output, ")\n\n")
 	generateFields(output, nil, reflect.TypeOf(config.Configuration{}))
 	_ = output.Close()