fix private/public key wording various UI fixes and improvements

FTPClient is a very simple FTP client that uses Apache Commons Net for FTP, FTPS and SSHJ for SFTP. ○ Features ● • Browsing the contents of the directory • Uploading files to an FTP server • Creating directories • Download files • Viewing properties of files and directories • Renaming files and directories Open Source: https://codeberg.org/qwerty287/ftpclient If there are any bugs / bugs in the application, please report them to Codeberg: https://codeberg.org/qwerty287/ftpclient/issues List of all changes: https://codeberg.org/qwerty287/ftpclient/releases