Add Haskell file type icon (#6995)

Small change to add the Haskell logo as a file icon. Screenshot below
shows what this looks like.

![CleanShot 2024-01-29 at 11 21
30@2x](https://github.com/zed-industries/zed/assets/132238190/b484c679-965a-4e73-88dc-ebb670a0f390)

assets/icons/file_icons/file_types.json

@@ -45,6 +45,7 @@
         "heex": "elixir",
         "htm": "template",
         "html": "template",
+        "hs": "haskell",
         "ib": "storage",
         "ico": "image",
         "ini": "settings",
@@ -146,6 +147,9 @@
         "expanded_folder": {
             "icon": "icons/file_icons/folder_open.svg"
         },
+        "haskell": {
+            "icon": "icons/file_icons/haskell.svg"
+        },
         "image": {
             "icon": "icons/file_icons/image.svg"
         },

assets/icons/file_icons/haskell.svg

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   viewBox="0 0 32 32"
+   version="1.1"
+   id="svg977"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs981" />
+  <path
+     id="path973"
+     d="M 10.699219 8.9003906 L 10.699219 9 C 12.199219 11.3 13.800781 13.600391 15.300781 15.900391 L 15.300781 16 C 13.800781 18.3 12.199219 20.600391 10.699219 22.900391 L 10.699219 23 L 14.199219 23 L 14.300781 22.900391 C 15.200781 21.500391 16.199609 20.099219 17.099609 18.699219 C 17.199609 18.599219 17.099219 18.599219 17.199219 18.699219 C 18.099219 20.099219 19.1 21.500391 20 22.900391 L 20.099609 23 L 23.599609 23 C 21.699609 20 19.699219 17.099609 17.699219 14.099609 C 16.499219 12.399609 15.399219 10.600391 14.199219 8.9003906 L 10.699219 8.9003906 z M 6 9 C 7.6 11.3 9.0996094 13.6 10.599609 16 L 10.599609 16.099609 C 9.4996094 17.799609 8.4007813 19.399609 7.3007812 21.099609 C 6.8007813 21.699609 6.4 22.4 6 23 L 6 23.099609 L 9.5 23.099609 C 11.1 20.699609 12.699219 18.399609 14.199219 16.099609 L 14.199219 16 C 13.499219 14.8 12.700391 13.7 11.900391 12.5 C 11.100391 11.4 10.399609 10.199609 9.5996094 9.0996094 L 9.5 9 L 6 9 z M 18.199219 13 L 18.199219 13.099609 C 18.699219 13.899609 19.199219 14.600391 19.699219 15.400391 L 26 15.400391 L 26 13 L 18.199219 13 z M 20.5 16.599609 L 20.5 16.699219 C 21 17.499219 21.5 18.2 22 19 L 26 19 L 26 16.599609 L 20.5 16.599609 z " />
+</svg>