fixes more things in fish config

modules/fish/default.nix

@@ -25,7 +25,7 @@
         command fzf
       '';
       dev_projects = /* fish */ ''
-        if test "$hn" == "dnsc-work"
+        if test "$hn" = "dnsc-work"
           begin
             fd . ~/dev/ride/apps/backend/edge-services -t d -d 1;
             fd . ~/dev/ride/apps/backend/backend-services -t d -d 1;
@@ -74,7 +74,7 @@
 
         set -l session_name (basename $selected)
 
-        if "$ZELLIJ" == 0
+        if test $ZELLIJ -eq 0
           zellij pipe --plugin file:${pkgs.zellij-switch}/bin/zellij-switch.wasm -- "--session $session_name --cwd $selected --layout default"
         else
           zellij attach "$session_name" --create
@@ -183,7 +183,7 @@
         fish_add_path /run/wrappers/bin
         fish_add_path /run/current-system/sw/bin
 
-        if $uname == "Darwin"
+        if test "$uname" = "Darwin"
           setup_homebrew
         end
       '';
@@ -212,7 +212,7 @@
       setup_env
       setup_path
 
-      if test "$hn" == "dnsc-work"
+      if test "$hn" = "dnsc-work"
         setup_work
       end