Add oh-my-bash, fastfetch, and eza configurations

- Updated bash/.bashrc with oh-my-bash framework
  - Theme: agnoster
  - Plugins: git, bashmarks
  - Completions: git, composer, ssh

- Added fastfetch configuration (replaces neofetch)
  - Created fastfetch/.config/fastfetch/config.jsonc
  - Clean modern layout with cyan-colored keys
  - Displays system info, hardware, and color palette

- Replaced exa with eza (maintained fork)
  - Added alias: ls='eza -l --color=always --group-directories-first'
  - Included color support for grep commands
  - Added convenience aliases: ll, la, l

- Updated setup.sh to include fastfetch in stow packages
- Configured bashrc to run fastfetch on terminal startup
- Added ~/.local/bin to PATH for custom binaries

bash/.bashrc

@@ -156,3 +156,21 @@ source "$OSH"/oh-my-bash.sh
 # alias bashconfig="mate ~/.bashrc"
 # alias ohmybash="mate ~/.oh-my-bash"
 export PATH="$HOME/.local/bin:$PATH"
+
+# Enable color support for various commands
+if [ -x /usr/bin/dircolors ]; then
+    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
+    # Use eza (modern ls replacement) with colors and directory grouping
+    alias ls='eza -l --color=always --group-directories-first'
+    alias grep='grep --color=auto'
+    alias fgrep='fgrep --color=auto'
+    alias egrep='egrep --color=auto'
+fi
+
+# Additional ls aliases
+alias ll='ls -alF'
+alias la='ls -A'
+alias l='ls -CF'
+
+# Run fastfetch on terminal startup
+fastfetch