Create a Bengali (Bangla) translation of the open terminal guide #184
Description
Based on the English version of the guide (https://github.com/devadvance/terminalcheatsheet/blob/staging/guides/open-terminal-macos.md), create a Bengali (Bangla) translation in https://github.com/devadvance/terminalcheatsheet/blob/staging/i18n/bn/guides/open-terminal-macos.md.
You can copy this template to use a starting point: https://github.com/devadvance/terminalcheatsheet/blob/staging/i18n/new_language_templates/guides/open-terminal-macos.md
It is OK to use the English images/GIFs. Look for TODO in the file for suggested places for translations.
Please comment on this issue before starting work so people are informed that you are working on it.