Add .DS_Store to .gitignore

[mcbarton]

Description

Please include a summary of changes, motivation and context for this PR.

Fixes # (issue)

While trying something out earlier I noticed xeus-cpp picked up the creation of a .DS_Store . On projects I work on this file is usually added to the .gitignore, so it isn't accidentally picked up . This PR does this.

Type of change

Please tick all options which are relevant.

• Bug fix
• New feature
• Added/removed dependencies
• Required documentation updates

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.78%. Comparing base (7ecb686) to head (adeef85).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #341   +/-   ##
=======================================
  Coverage   81.78%   81.78%           
=======================================
  Files          20       20           
  Lines         950      950           
  Branches       87       87           
=======================================
  Hits          777      777           
  Misses        173      173           

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[anutosh491]

Hmm what were you trying out ?

I am on macos and I've never encountered the creation of a DS_Store

[mcbarton]

@anutosh491 What I was trying out was irrelavent. Its not why it was created. It was created because I opened up my xeus-cpp folder using finder, or edited one the files in the folder starting from finder. I don't know which. See https://en.m.wikipedia.org/wiki/.DS_Store for more details on the file.

[mcbarton]

Here is an example of where is has been added in another repo https://github.com/actions/runner-images/blob/ecb9d4051afe957263ec15fcb1db71472abd9ad8/.gitignore#L300 . Its quite a common file to show up when developing on macos. I'm quite surprised you've never come accross it to be honest.

[anutosh491]

I'm quite surprised you've never come accross it to be honest.

I mean I've heard of it but never come across anything involving it in a "xeus-cpp" context.

[vgvassilev]

Lgtm!