feat: Added neon theme

[anirban12d]

This theme has bright colors that works well with dark backgrounds.

Description

Fixes #

Type of change

• Bug fix (added a non-breaking change which fixes an issue)
• New feature (added a non-breaking change which adds functionality)
• Updated documentation (updated the readme, templates, or other repo files)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

• Tested locally with a valid username
• Tested locally with an invalid username
• Ran tests with composer test
• Added or updated test cases to test new features

Checklist:

• I have checked to make sure no other pull requests are open for this issue
• The code is properly formatted and is consistent with the existing code style
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Screenshots

[DenverCoder1]

Looks great 👍

Would you be able to also update the docs - https://github.com/anirban12d/github-readme-streak-stats/blob/patch-1/docs/themes.md?

Here's an image url that can be used - https://user-images.githubusercontent.com/20955511/225303106-8c901c48-732e-49ae-a2e6-8733254536eb.png

diff --git a/docs/themes.md b/docs/themes.md
index c1f8ee4..8c610bf 100644
--- a/docs/themes.md
+++ b/docs/themes.md
@@ -121,6 +121,7 @@ Note: Theme names provided are case-insensitive and any use of underscores will
 |         `date-night`          | ![image](https://user-images.githubusercontent.com/20955511/221585779-db7f394d-b3c6-49e4-ad75-bbba97530765.png)  |
 |        `one-dark-pro`         | ![image](https://user-images.githubusercontent.com/20955511/221585805-1d10928a-286c-4945-95ed-a7317e56692f.png)  |
 |            `rose`             | ![image](https://user-images.githubusercontent.com/20955511/221585827-e566b73a-e0c0-4711-b48c-667e6500d44e.png)  |
+|            `neon`             | ![image](https://user-images.githubusercontent.com/20955511/225303106-8c901c48-732e-49ae-a2e6-8733254536eb.png)  |
 
 ### Can't find the theme you like?
 
diff --git a/src/themes.php b/src/themes.php
index 3eb5ea9..6db9e8d 100644
--- a/src/themes.php
+++ b/src/themes.php
@@ -1358,10 +1358,10 @@ return [
         "sideLabels" => "#8D192B",
         "dates" => "#862931",
     ],
-     "neon" => [
+    "neon" => [
         "background" => "#000000",
-        "border" => "#ffffff",
-        "stroke" => "#ffffff",
+        "border" => "#FFFFFF",
+        "stroke" => "#FFFFFF",
         "ring" => "#00EAD3",
         "fire" => "#00EAD3",
         "currStreakNum" => "#FF449F",

Let me know if you have any questions.

[anirban12d]

Updated the docs.

[DenverCoder1]

Looks great! Thanks for the contribution 🎉

[anirban12d]

You are most welcome. 🎉