Release v1.2.0

Self-host Improvements

• Make the image proxy server optional.
• Make the article text embedding work optional.

OPML Import Improvements

• Optimize article upsert so there is no need to select article before upsert.
• Insert OPML folders and feeds in sequence instead of in parallel, so that it will not overwhelm the server with large imports.
• Show progress when importing OPML.
• Show error details for failed to import feeds.
• Add configurable folder and feed limits for OPML imports.

Other Improvements

• Improve move feed popup menu.
• Support more image parsing from feed.
• Improve image display in article reader.
• Use URI instead of URL in code.