fix(slickvpn/updater): update existing hostnames from servers.json

- SlickVPN location website is now total garbage which cannot be parsed

internal/storage/hardcoded.go

@@ -19,3 +19,9 @@ func parseHardcodedServers() (allServers models.AllServers, err error) {
 	err = decoder.Decode(&allServers)
 	return allServers, err
 }
+
+// HardcodedServers returns the hardcoded servers.
+// Warning: mutating the returned value will impact the storage's internal state.
+func (s *Storage) HardcodedServers() models.AllServers {
+	return s.hardcodedServers
+}

internal/storage/read.go

@@ -12,7 +12,7 @@ import (
 	"golang.org/x/text/language"
 )
 
-// readFromFile reads the servers from server.json.
+// readFromFile reads the servers from servers.json.
 // It only reads servers that have the same version as the hardcoded servers version
 // to avoid JSON decoding errors.
 func (s *Storage) readFromFile(filepath string, hardcodedVersions map[string]uint16) (