Add "submit your own" to project ideas

[tmhall99]

• Add "Submit your own" button to https://techforpalestine.org/project/ideas

• The idea page is a list of ideas, and people come to this page to understand the projects they might want to start if they don't have their own idea.

• [ ] https://techforpalestine.org/project/ideas is a notion page which should be a techforpalestine webpage

• [ ] (@tmhall99 )Create Notion database to store new ideas for review and put a form on it

• [ ] Add an option to submit your own idea, the submit button could be a link to the notion form created by Tom