adds separate fish config for server

modules/fish/server.nix

@@ -0,0 +1,78 @@
+{ config, pkgs, ... }:
+
+{ programs.fish = {
+    enable = true;
+
+    functions = {
+      ff = ''
+      set RG_PREFIX "rg --column --line-number --no-heading --color=always --smart-case "
+      set INITIAL_QUERY "$argv"
+      fzf --ansi --disabled --query "$INITIAL_QUERY" \
+        --bind "start:reload:$RG_PREFIX {q}" \
+        --bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
+        --delimiter : \
+        --preview 'bat --color=always {1} --highlight-line {2}' \
+        --preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
+        --bind 'enter:become(nvim {1} +{2})'
+      '';
+      fish_greeting = "fortune -a";
+      resize_images = ''
+      # Resize all JPG images in the current directory and its subdirectories
+      # Usage: resize_images [percentage]
+      # Example: resize_images 20 - resizes all images to 20% of original size
+      # If no percentage is provided, defaults to 40%
+      
+      set -l percentage $argv[1]
+      if test -z "$percentage"
+        set percentage 40
+      end
+      
+      for img in (find . -type f -name "*.JPG")
+        set original_size (stat -f %z "$img")
+        magick convert "$img" -resize "$percentage%" "$img"
+        set new_size (stat -f %z "$img")
+        echo "Processed $img"
+        echo "Original size: $original_size bytes"
+        echo "New size: $new_size bytes"
+        echo "---"
+      end
+      '';
+      localip = "ifconfig | grep \"inet \" | grep -v 127.0.0.1 | awk '{print $2}' | head -n 1";
+      publicip = "curl -4 ifconfig.me";
+      fzf = ''
+      set -Ux FZF_DEFAULT_OPTS "
+              --color=fg:#908caa,bg:#191724,hl:#ebbcba
+              --color=fg+:#e0def4,bg+:#26233a,hl+:#ebbcba
+              --color=border:#403d52,header:#31748f,gutter:#191724
+              --color=spinner:#f6c177,info:#9ccfd8
+              --color=pointer:#c4a7e7,marker:#eb6f92,prompt:#908caa"
+
+      command fzf
+      '';
+    };
+
+    interactiveShellInit = ''
+      fish_config theme choose "Rosé Pine"
+
+      set hn (prompt_hostname)
+      set fish_cursor_default     block      blink
+      set fish_cursor_insert      line       blink
+      set fish_cursor_replace_one underscore blink
+      set fish_cursor_visual      block
+      set fish_vi_force_cursor 1
+      fish_vi_key_bindings
+
+      fish_add_path /run/current-system/sw/bin
+      fish_add_path $HOME/.config/fish/plugins
+    '';
+
+    shellAbbrs = {
+      lg = "lazygit";
+      g = "git";
+      gco = "git checkout";
+      frc = "source ~/.config/fish/**/*.fish";
+    };
+  };
+
+  home.file.".config/fish/themes".source = ./themes;
+}