fix: bash prompt weirdness

Under certain situations, the bash prompt was not getting aligned
properly.
Mainly when writing a bunch of text, and removing it with M-BS, where
the width of the printed text is kept.

.bashrc

@@ -50,11 +50,13 @@ __regenprompt() {
 	local err=$? # acquire the error code of the last executed command
 	local git=$(__lazy_git_ps1)
 
+	# Format the error code to be in the last column of the terminal
+	# this shall be printed as non-printable characters, so won't effect text wrapping.
 	if [ $err -ne 0 ]; then
-		err="\[\033[$((COLUMNS - 4))G\033[01;31m\]${err}\[\033[0G\]"
+		err="\033[$((COLUMNS - 4))G\033[01;31m${err}\033[0G"
 	else unset err; fi
 
-	PS1="$err"                      # error code
+	PS1="\[$err\]"                  # error code
 	PS1="$PS1\[\033[?25h\]"         # show cursor
 	PS1="$PS1\[\033[01;35m\]\u@\h"  # user@host
 	PS1="$PS1\[\033[00m\]:"         # separator