Slides, Video, and Transcription Clarity Update

🛠 Fixes

• Fixed empty branches appearing during speech-to-map conversion.
• Fixed borders on branch buttons (Before, After).
• Fixed assistant visibility switching depending on mode.
• Fixed alignment of timestamps in transcription items for a cleaner timeline.
• Fixed menu toggling in Files panel (no more stuck menu).
• Fixed branch movement snapping and prevented freezes on short drags
  (Before, After;
  Before, After).
• Fixed accurate cursor during crop drawing (always crosshair).
• Fixed overlay closing when clicking on the background
  (Before, After).
• Fixed slide fullscreen viewer sizing — slide fits properly
  (Screenshot).
• Fixed branch position after geometry changes during speaking
  (Video).
• Fixed image empty state recalculation for branches.
• Fixed fullscreen zoom buttons (zoom now works reliably).
• Fixed opening fullscreen on canvas click even when zoomed.
• Fixed precise drawing alignment across all zoom levels.

✨ New Features

• Added consistent grey central image for clean visual focus
  (Video).
• Added automatic movement of last section to a newly created topic within 60 seconds
  (Video).
• Added full modern transcription panel with per-block statuses
  (Screenshot).
• Added transcription notifications at the bottom (less disruptive)
  (Before,
  After).
• Added Notes filter, branch auto-expansion, and highlighted search matches
  (Video,
  Highlight demo).
• Added contextual help dialog system with positioning, toggle, and navigation.
• Added “Delete only selected” and “Delete with children” in branch context menu
  (Video).
• Added auto-centering of speaking branch when recording starts
  (Video).
• Added a large pinned Capture Window for watching slides/video while the map moves underneath
  (Video).
• Added mobile speaking-branch highlighting with border+label
  (Screenshot).
• Added image resizing with interactive drag handle
  (Video).
• Added drag-and-drop of images between branches
  (Video).
• Added slide-to-branch drag highlighting
  (Screenshot).
• Added first version of video streaming and video frame capture
  (Video).
• Added full slides module: upload PDF/PPT/images, navigate slides, add slides to branches
  (Screenshot).
• Added multiple presentations upload
  (Video).
• Added drag-and-drop upload anywhere on slides viewer
  (Video).
• Added PPT/PPTX → PDF conversion via LibreOffice (server and Electron).
• Added poppler bundling for PDF slide extraction.
• Added slide swipe gestures on mobile
  (Video).
• Added adaptive mobile layout for slides
  (Video).
• Added slide fullscreen mode with zoom, crop, draw and improved controls
  (Screenshot).
• Added buttonus component in slides for consistent UI.
• Added collapsible slides panel with restore-to-last-tab behavior
  (Video).
• Added auto-switch to Video tab when capture starts
  (Video).
• Added Ctrl/Cmd wheel-zoom with pan clamping and min zoom = 1.
• Added Esc to exit crop mode.
• Added interactive fullscreen zoom throttling
  (Before, After).
• Added option to skip auto icons when branch has image
  (Screenshot).
• Added auto-create section when adding video frame to branch with image
  (Video).
• Added visual feedback “Adding…” → “Added!” for Add to Branch
  (Video).

🔄 Improvements

• Cleaner, more modern styling for buttons and assistant
  (Screenshot).
• New color system for cards and buttons.
• Improved layout for slides panels, video panels, and toggle switcher.
• Improved slide hover zoom and cursor feedback
  (Video).
• Assistant panel adapts better to all sizes
  (Video).
• Smarter transcription flow, clear finalization logic, better UI feedback.
• Better audio-processing pipeline, more stable sessions.
• Faster, smoother drag-and-drop of images and cropped areas.
• More reliable fullscreen transitions and canvas sizing.
• Improved zoom controls placement and behavior.
• Background for fullscreen canvas now semi-transparent.
• Stabilized video after switching Slides → Video → Slides
  (Before, After).
• Improved branch geometry on creation and movement.
• Enhanced slide navigation persistence across modes.
• More predictable slide/canvas resizing with throttling.
• Improved Add to Branch logic and error handling.
• Cleaner UI for dialogs and statusbar on mobile.
• Improved collapse/expand logic for slides section.
• Cleaner theme, spacing and interaction feedback across the app.

And other improvements.