v0.6.4

• Added toggle to control quick dictionary mode (single word lookup). This is a convenient feature but can cause security issues if used with password managers that copies password to the clipboard and when a network service is used.
• Switched to lingva.ml for Google Translate. An alternate instance can be chosen. This removes the pygoogletrans dependency.
• Temporarily removed Google dictionary as an online dictionary service. Unfortunately, the maintainer decided to switch to Wiktionary data, which means this API is no longer useful. I am investigating a way to host this service somewhere else but without much success. Any help on this would be appreciated.