[zsh] Add shorebird and dart sh config

zsh/.zshrc

@@ -32,3 +32,13 @@ local hostname="%{$fg_bold[white]%}%m"
 PROMPT="${hostname} ${PROMPT}"
 
 export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$PATH"
+
+## [Completion]
+## Completion scripts setup. Remove the following line to uninstall
+[[ -f /home/powellc/.dart-cli-completion/zsh-config.zsh ]] && . /home/powellc/.dart-cli-completion/zsh-config.zsh || true
+## [/Completion]
+
+export PATH="/home/powellc/.shorebird/bin:$PATH"
+export PATH="/home/powellc/.asdf/bin:$PATH"
+export ASDF_DATA_DIR="/home/powellc/.asdf"
+export PATH="$ASDF_DATA_DIR/shims:$PATH"