Replace exa with eza

[BoyanYK]

Exa is no longer maintained, so its better to use the maintained fork eza instead: ogham/exa#1243

arch-config-dotfiles/.config/fish/config.fish

Lines 115 to 119 in 6f31845

	alias ls='exa -al --color=always --group-directories-first --icons' # preferred listing
	alias la='exa -a --color=always --group-directories-first --icons' # all files and dirs
	alias ll='exa -l --color=always --group-directories-first --icons' # long format
	alias lt='exa -aT --color=always --group-directories-first --icons' # tree listing
	alias l.='exa -ald --color=always --group-directories-first --icons .*' # show only dotfiles