Add ways to back up your journal, VERY IMPORTANT, with formatting.

Option to add images and photos, I used to keep a dream journal for years and I was always adding images. Also a way to backup the journal WITH said images and formatting intact if possible. Like a backup feature that backs up your data in the best way possible.

Add themes, dark themes, more color choices, nice designs for self-expression, to make your dream journal more personal to you.

Add options for lucid dream, with scales for intensities and such. Maybe add a text box where you can write your thoughts or commentary on what you think the meaning of your own dream is.

Ability to share the page with other dreamboard users maybe.

Option to let you edit your dream in the mobile version (not sure if the PC version has an edit option but if not, add that too)

Oh very important, add the ability to add a dream in the past. For example, if I had a dream weeks ago and I want to add it to my dreamboard, let me choose the past date to add the dream in that date.