v0.8 - Markdown files

[cloverich]

Migrate Chronicles backend to an index over markdown files; maintain them; support importing other markdown files. Re-evaluate ids, front matter, and other data / structure decisions that may be more challenging to change in the future.

• When database file is invalid, recover gracefully #52
• Export all data to markdown #131
• Experimental Notion import #134
• persist and maintain arbitrary front matter on import #259
• Import from markdown (directory) #132
• Database and backend ideation #61
• UUID vs more obvious timestamp / unique per journal or globally #248
• Handle document links when journal re-name / delete #251
• Sync follow-up issues #252
• Store settings file in the root directory, under .chronicles, by default #254
• Add export feature #41

Stretch

• Front matter support #127
• Improve empty journal state and first time use #84
• 4-spaced markdown breaks the editor #261
• strikethrough breaks editor #266
• Improve error handling when a note fails to render #260 (because of strikethrough bug)