fixed some stuff and made it compatable with fisher

conf.d/00_fisher_path.fish

@@ -0,0 +1,20 @@
+# 1. Point to your custom Fisher repository
+set -gx fisher_path ~/.config/fisher
+if test -d $fisher_path
+    # 2. Append the custom folders to Fish's native search lists if they aren't already there
+    if not contains $fisher_path/functions $fish_function_path
+        set fish_function_path $fisher_path/functions $fish_function_path
+    end
+
+    if not contains $fisher_path/completions $fish_complete_path
+        set fish_complete_path $fisher_path/completions $fish_complete_path
+    end
+
+    # 3. Simulate the conf.d execution by natively sourcing third-party configuration files
+    for file in $fisher_path/conf.d/*.fish
+        if not test -s $file
+            continue
+        end
+        source $file
+    end
+end