config(fish): add fish completions for cli tools

dot_config/fish/themes/cyberdream.theme

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+# name: 'cyberdream'
+# url: 'https://github.com/scottmckendry/cyberdream.nvim'
+# preferred_background: 16181a
+
+fish_color_normal ffffff
+fish_color_command 5ef1ff
+fish_color_param ffaecf
+fish_color_keyword 5eff6c
+fish_color_quote f1ff5e
+fish_color_redirection 5ea1ff
+fish_color_end bd5eff
+fish_color_comment 7b8496
+fish_color_error ff6e5e
+fish_color_gray 7b8496
+fish_color_selection --background=3c4048
+fish_color_search_match --background=3c4048
+fish_color_option f1ff5e
+fish_color_operator 5ea1ff
+fish_color_escape ffaecf
+fish_color_autosuggestion 7b8496
+fish_color_cancel ff6e5e
+fish_color_cwd ffbd5e
+fish_color_user 5ef5d2
+fish_color_host 5eff6c
+fish_color_host_remote f1ff5e
+fish_color_status ff6e5e
+fish_pager_color_progress 7b8496
+fish_pager_color_prefix 5ea1ff
+fish_pager_color_completion ffffff
+fish_pager_color_description 7b8496