Day Planner Enhanced 0.7.0

✨ New features

• Added Obsidian-style image and file pasting to Edit nested items..., including nested items and the parent title. Attachments respect the configured attachment folder and link format; images, audio, video, and PDFs are embedded while other files remain plain links (#15, #16).
• Added Show embeds in timeline blocks, off by default, so attachments remain readable as plain links in height-constrained blocks while previews stay available in the nested-items editor and source note.

✨ Other improvements

• Made nested-item and parent-title edits save automatically when the editor closes, including waiting for in-progress attachment saves, and removed the extra Save and Cancel buttons.
• Stopped timeline-block Markdown from re-rendering on every pointer movement while editing, moving, or resizing blocks.