Warnings, Tooltips, and Confirmation Sequences

*Add Confirmation Sequences to the Following Processes*
- Download notes 
- Erase Content

*Add Warnings to the Following Processes*
- "Deleted all notes!" post-message / warning
- Note title character limit (no such limit exists yet)

*Add Tooltips to the Following Buttons (Appear on Hover)*
- Add folder
- View folders / all folders
