Add V file icon (#20017)

Here is a preview of the new `v.svg` in comparison with some of the
existing icons:

![image](https://github.com/user-attachments/assets/451762ff-b13a-42b9-89ac-695f25a43a84)

---------

Co-authored-by: Danilo Leal <[email protected]>

Author: spytheman

assets/icons/file_icons/file_types.json

@@ -173,6 +173,9 @@
     "tsx": "react",
     "ttf": "font",
     "txt": "document",
+    "v": "v",
+    "vsh": "v",
+    "vv": "v",
     "vue": "vue",
     "wav": "audio",
     "webm": "video",
@@ -379,6 +382,9 @@
     "typescript": {
       "icon": "icons/file_icons/typescript.svg"
     },
+    "v": {
+      "icon": "icons/file_icons/v.svg"
+    },
     "vcs": {
       "icon": "icons/file_icons/git.svg"
     },