Add 'f' function

Adds 'f' function as a wrapper around 'fin' (the Docksal CLI) and removes the previous alias.

tag-zsh/zsh/functions/f

@@ -0,0 +1,9 @@
+# No arguments: `fin ps`
+# With arguments: acts like `fin`
+f() {
+  if [[ $# > 0 ]]; then
+    fin $@
+  else
+    fin ps
+  fi
+}

tag-zsh/zsh_profile.d/aliases.zsh

@@ -30,9 +30,6 @@ alias yp="yarn prod"
 alias ys="yarn serve"
 alias yw="yarn watch"
 
-# Docksal
-alias f="fin"
-
 # Shorter Git commands.
 alias add='git add'
 alias amend='git commit --amend'