feat: add sourcehut style

Signed-off-by: Matej Focko <me@mfocko.xyz>

README.md

@@ -3,3 +3,4 @@
 ## List of available styles
 
 * [mikrotik](./mikrotik.user.css)
+* [sourcehut](./sourcehut.user.css)

sourcehut.user.css

@@ -0,0 +1,59 @@
+/* ==UserStyle==
+@name           sourcehut
+@namespace      git.mfocko.xyz/mfocko/usercss
+@updateURL      https://git.mfocko.xyz/mfocko/usercss/raw/branch/main/sourcehut.user.css
+@version        1.1.4
+@description    Replace default monospace font on the sourcehut.
+@author         mfocko <me@mfocko.xyz>
+@preprocessor   stylus
+@var select monospace-font "Font" [
+    "custom*",
+    "Berkeley Mono Variable",
+    "Cascadia Code NF",
+    "Comic Code Ligatures",
+    "Fira Code",
+    "Hack",
+    "IBM Plex Mono",
+    "Iosevka Term",
+    "Iosevka Term Slab",
+    "Iosevka Comfy",
+    "Pragmasevka",
+    "JetBrains Mono",
+    "JuliaMono",
+    "MonoLisa Variable",
+    "PragmataPro Liga",
+    "PragmataPro Mono Liga",
+    "Rec Mono Linear",
+    "Roboto Mono",
+    "SF Mono",
+    "Source Code Pro",
+    "Victor Mono",
+]
+@var text custom-font "Custom font" "monospace"
+@var text font-features "Font feature settings" "'calt' on, 'liga' on, 'dlig' on"
+==/UserStyle== */
+
+if monospace-font=="custom"
+    monospace-font=custom-font
+
+@-moz-document domain("sr.ht") {
+    :root {
+        --font-family-monospace: monospace-font !important;
+    }
+    
+    pre,
+    code,
+    kbd,
+    var,
+    samp,
+    tt,
+    textarea {
+        font-family: monospace-font !important;
+        font-feature-settings: font-features;
+    }
+    
+    .tree-list {
+        font-family: monospace-font !important;
+        font-feature-settings: font-features;
+    }
+}