refactor: properly alias cb to y

Instead of re-defining the same behavior, just write `cb` into the
y.fish function file as an alias for y

functions/cb.fish

@@ -1,22 +0,0 @@
-# Copyright (C) 2026 Rootiest
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
-# Copy to clipboard
-function cb --description 'Copy to clipboard'
-    if type -q wl-copy
-        if set -q argv[1]
-            echo $argv | wl-copy
-        else
-            wl-copy
-        end
-    else if type -q xclip
-        if set -q argv[1]
-            echo $argv | xclip -selection clipboard
-        else
-            xclip -selection clipboard
-        end
-    else
-        echo "Error: No clipboard provider found." >&2
-        return 1
-    end
-end

functions/y.fish

@@ -35,3 +35,8 @@ function y --description 'Yank to clipboard'
         eval $copy_cmd
     end
 end
+
+# Alias cb=y
+function cb --wraps='y' --description 'Alias cb=y'
+    y $argv
+end