Better Thumbnails, Buttons and Attachments Stability

🛠 Fixes

• Fixed thumbnails not being generated for new files
  Screenshot
• Fixed center interface buttons ("Text to Map", "Record") now properly visible on start
  Screenshot
• Fixed attachments not being lost when duplicating new files
• Fixed caret position in center input
  Before: Screenshot
  After: Screenshot
• Fixed logic error in childDatum.period assignment in branches