change `var` to `const/let` in `local.js`

[7malikk]

Hi, this is a first-timer-only issue. This means we've worked to make it more legible to folks who either haven't contributed to our codebase before, or even folks who haven't contributed to open source before.

If that's you, we're interested in helping you take the first step and can answer questions and help you out as you do. Note that we're especially interested in contributions from people from underrepresented groups in free and open-source software!

We know that the process of creating a pull request is one of the biggest barriers for new contributors. This issue is for you 💝

If you have contributed before, consider leaving this one for someone new and look through our general help wanted issues. Thanks!

🤔 What you will need to know.

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📋 Step by Step

• [ ] 🙋 Claim this issue: Claim the issue by commenting. If someone else has claimed it, ask if they've opened a pull request already and if they're stuck -- maybe you can help them solve a problem or move it along!

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And open one early if possible - even before you've completed it with additional commits - and others can help you figure out any issues you may face.

• [ ] 📝 Update the file local.js in the Leaflet.DistortableImage repository (press the little pen Icon) and edit the line as shown below.

See this page for some help in taking your first steps!

Below is a "diff" showing in red (and a -) which lines to remove, and in green (and a +) which lines to add:

- 52 var files = e.dataTransfer.files;
+ 52 const files = e.dataTransfer.files;
- 54  for (var i = 0, f; (f = files[i]); i++) {
+ 54  for (let i = 0, f; (f = files[i]); i++) {

• [ ] 💾 Commit your changes

• [ ] 🔀 Start a Pull Request. There are two ways how you can start a pull request:

1. If you are familiar with the terminal or would like to learn it, here is a great tutorial on how to send a pull request using the terminal.

2. You can also edit files directly in your browser and open a pull request from there.

• [ ] 🏁 Done Ask in comments for a review :)

🤔❓ Questions?

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Is someone else already working on this?

We encourage you to link to this issue by mentioning the issue # in your pull request, so we can see if someone's already started on it. If someone seem stuck, offer them some help! Otherwise, take a look at some other issues you can help with. Thanks!

(This issue was created by First-Timers-Bot.)

[7malikk]

Hello @jywarren, @cesswairimu, @TildaDares Could you check out this fto?

I confirmed that there are no active PRs attached to this, to reduce the risk of conflicts. It is also self-contained. Thank you!

[cesswairimu]

Looks great :tada: thanks @7malikk

[7malikk]

Thank you @cesswairimu!!

[jenny-alexander]

I would like to make this change!

[jenny-alexander]

Hi @7malikk, I created a PR. Please review when you are able.