feat: Add rust-ferris-light and rust-ferris-dark themes (#776)

Co-authored-by: Jonah Lawrence <jonah@freshidea.com>

Author: ankddev

docs/themes.md

@@ -163,6 +163,8 @@ Note: Theme names provided are case-insensitive and any use of underscores will
 |          `microsoft`          |                 ![image](https://github.com/user-attachments/assets/4c2cce9d-90b5-4e38-8422-656c5a78b4d9)                  |
 |       `microsoft-dark`        |                 ![image](https://github.com/user-attachments/assets/a5918d7d-f568-4012-b06f-d9cfacaece04)                  |
 |       `hacker-inverted`       |                 ![image](https://github.com/user-attachments/assets/b64c136a-827b-4177-98f9-28db59bba0ef)                  |
+|      `rust-ferris-light`      |                 ![image](https://github.com/user-attachments/assets/2e1d175f-c39d-4e56-be41-d9c277f1e83a)                  |
+|      `rust-ferris-dark`       |                 ![image](https://github.com/user-attachments/assets/05e3f9ac-708d-415d-990f-ede3d0a84bab)                  |
 |      `cyber-streakglow`       |                 ![image](https://github.com/user-attachments/assets/8c6108e1-f3a1-4653-9f68-08ed6dcfc498)                  |
 
 ### Can't find the theme you like?

src/themes.php

@@ -2017,6 +2017,32 @@
         "dates" => "#000000",
         "excludeDaysLabel" => "#000000",
     ],
+    "rust-ferris-dark" => [
+        "background" => "#000000",
+        "border" => "#FFFFFF",
+        "stroke" => "#F66200",
+        "ring" => "#F49600",
+        "fire" => "#F66200",
+        "currStreakNum" => "#F49600",
+        "sideNums" => "#CC3A00",
+        "currStreakLabel" => "#F49600",
+        "sideLabels" => "#CC3A00",
+        "dates" => "#F66200",
+        "excludeDaysLabel" => "#F66200",
+    ],
+    "rust-ferris-light" => [
+        "background" => "#FFFFFF",
+        "border" => "#000000",
+        "stroke" => "#F66200",
+        "ring" => "#F49600",
+        "fire" => "#F66200",
+        "currStreakNum" => "#F49600",
+        "sideNums" => "#CC3A00",
+        "currStreakLabel" => "#F49600",
+        "sideLabels" => "#CC3A00",
+        "dates" => "#F66200",
+        "excludeDaysLabel" => "#F66200",
+    ],
     "cyber-streakglow" => [
         "background" => "42,E20FEB,0D00EB",
         "border" => "#00EBE1",