(scripts) added reasonable behaviour for escape to fzf script

scripts/fzf-bash-history.sh

@@ -4,6 +4,13 @@ function __search-history {
     current_line="${READLINE_LINE}"
     command=($(fc -lnr 1 | fzf --scheme=history --tmux --expect=tab,right -q "${current_line}"))
 
+    # restore readline on `escape`
+    if [[ -z "${command}" ]]; then
+        READLINE_LINE="${current_line}"
+        READLINE_POINT=$((0 + ${#current_line}))
+        return 0
+    fi
+
     # print command to terminal for editting
     if [[ ${command[0]} = "tab" || ${command[0]} = "right" ]]; then
         edit="true"