feat: Add Theme Oceanic-Next (#843)

* Add theme: oceanic-next
sourced from: https://github.com/mhartington/oceanic-next

* Update themes.md

---------

Co-authored-by: Jonah Lawrence <[email protected]>

Author: R055A

docs/themes.md

@@ -171,6 +171,7 @@ Note: Theme names provided are case-insensitive and any use of underscores will
 |          `dark-aura`          |                 ![Image](https://github.com/user-attachments/assets/14889d0e-26db-4fa6-8026-6312c9b4636e)                  |
 |       `everforest-dark`       |                 ![image](https://github.com/user-attachments/assets/45a4e0a0-d330-4233-9d76-89003e59bb31)                  |
 |      `everforest-light`       |                 ![image](https://github.com/user-attachments/assets/592466c0-5a67-48cc-adf0-f8a21ca891b6)                  |
+|        `oceanic-next`         |                 ![image](https://github.com/user-attachments/assets/e0182770-a511-42b6-a40b-644317268a0f)                  |
 
 ### Can't find the theme you like?
 

src/themes.php

@@ -2121,4 +2121,17 @@
         "dates" => "#8B9286",
         "excludeDaysLabel" => "#8B9286",
     ],
+    "oceanic-next" => [
+        "background" => "#1B2B34",
+        "border" => "#343D46",
+        "stroke" => "#4F5B66",
+        "ring" => "#6699CC",
+        "fire" => "#EC5F67",
+        "currStreakNum" => "#99C794",
+        "sideNums" => "#6699CC",
+        "currStreakLabel" => "#FAC863",
+        "sideLabels" => "#5FB3B3",
+        "dates" => "#A7ADBA",
+        "excludeDaysLabel" => "#A7ADBA",
+    ],
 ];