add ability to import/export secrets with comments

[mocherfaoui]

closes #74

few things to note:

• it would be better if some functions are moved to separate files like getSecrets and checkOverrides
• I used Menu as a dropdown menu from headless/ui, I think it would be better if it's extracted to a reusable component for future use
  • there is an issue with the dropdown menu, the menu doesn't close after a button is clicked. i'm investigating this issue at the moment
• it would be better the onButtonPressed prop from Button component is optional so it can be used as a trigger like the case above

[vmatsiiako]

Hi @mocherfaoui! Sorry for taking so long to review. This looks awesome!

Merging this right now. Meanwhile, a few things to mention:

• as you mentioned, it would be nice to put those secret function into corresponding files. Feel free to do this, or I will try to do it in one of the future commits.
• What do you think we should do about nested .yml files? Cyrrently it just converts a nested value to:

[vmatsiiako]

@mocherfaoui I can't pass this Frontend Check... :(((

Would you be able to have a look? Then it should be ready to merge

[vmatsiiako]

I fixed it! Merging right now 🚀
Though please let me know what you think of the questions above :)