Feature: Add Jinja for loop for dictionary and list

[jflairie]

This PR is intended to:

• create a snippet for Jinja for loop for dictionary
• create a snippet for Jinja for loop for list

[bastienboutonnet]

Thanks for this addition! The new dict snippet makes a lot of sense 👌

I'm not sure I buy the renaming of the more generic for loop to list. It introduces a "breaking" change and I'd like to keep this to a minimum. Someone might want to have a non specified for loop that let's them put in a list a string a whatever.

Rather than renaming I believe adding a more list specific for loop would be better. That way you can make it really specific as shown in the code comment.

[bastienboutonnet]

see my comment about renaming. If you're going to want to add a for that is already pre formatted for lists and only lists, I'd make one that actually helps to this end fully by doing as shown:

Suggested change

	"{% for ${1:item} in ${2:list} %}",
	"{% for ${1:item} in [${2:list}] %}",

[jflairie]

I think it's preferable to leave as it was initially. The cost of typing [ and ] is very minimal, so I like it that way as it gives the user flexibility: either you call a predefined list, or you type your own list

[bastienboutonnet]

It's up to you. I think I actually like an additional more specific version and given the type of keyboard I type on I like not to have to hit those if possible. But no pressure.

In the end you'd have:
for
for list
for dict
snippets

[jflairie]

^^ ok you lazy guy, I'll add it just for you!

[bastienboutonnet]

Love it! Also thanks for keeping the whitespace handling consistent with the rest. It's safer that way.

[bastienboutonnet]

This PR is now good to go :) Thanks again for contributing!