## Description
This PR introduces significant improvements to the Obsidian Khoj
plugin's chat interface and editing capabilities, enhancing the overall
user experience and content management functionality.
## Features
### 🔍 Enhanced Communication Mode
I've implemented radio buttons below the chat window for easier
communication mode selection. The modes are now displayed as emojis in
the conversation for a cleaner interface, replacing the previous
text-based system (e.g., /default, /research). I've also documented the
search mode functionality in the help command.
#### Screenshots
- Radio buttons for mode selection
- Emoji display in conversations

### 💬 Revamped Message Interaction
I've redesigned the message buttons with improved spacing and color
coding for better visual differentiation. The new edit button allows
quick message modifications - clicking it removes the conversation up to
that point and copies the message to the input field for easy editing or
retrying questions.
#### Screenshots
- New message styling and color scheme

- Edit button functionality

### 🤖 Advanced Agent Selection System
I've added a new chat creation button with agent selection capability.
Users can now choose from their available agents when starting a new
chat. While agents can't be switched mid-conversation to maintain
context, users can easily start fresh conversations with different
agents.
#### Screenshots
- Agent selection dropdown

### 👁️ Real-Time Context Awareness
I've added a button that gives Khoj access to read Obsidian opened tabs.
This allows Khoj to read open notes and track changes in real-time,
maintaining a history of previous versions to provide more contextual
assistance.
#### Screenshots
- Window access toggle

### ✏️ Smart Document Editing
Inspired by Cursor IDE's intelligent editing and ChatGPT's Canvas
functionality, I've implemented a first version of a content creation
system we've been discussing. Using a JSON-based modification system,
Khoj can now make precise changes to specific parts of files, with
changes previewed in yellow highlighting before application.
Modification code blocks are neatly organized in collapsible sections
with clear action summaries. While this is just a first step, it's
working remarkably well and I have several ideas for expanding this
functionality to make Khoj an even more powerful content creation
assistant.
#### Screenshots
- JSON modification preview
- Change highlighting system
- Collapsible code blocks
- Accept/cancel controls

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Co-authored-by: Debanjum <debanjum@gmail.com>
Previously if you tried to force sync a vault with more than 1000
files it would only end up keeping the last batch because the PUT API
call would delete all previous entries.
This change calls DELETE for all previously indexed data first, followed by
a PATCH to index current vault on a force sync (regenerate) request.
This ensures that files from previous batches are not deleted.
We've been having issues generating diagrams with Excalidraw that are any degree of complexity. By contrast, LLMs are able to handle Mermaid.js syntax a lot better, as it's much more forgiving and has a simpler declarative style. Refer to https://mermaid.js.org/.
Update so that new diagrams are generated with Mermaid.js, while old diagrams generated with Excalidraw can still be viewed.
Fix for #1082 pushed down adding the `data:image/webp;base64' prefix
of the base64 images to the server image gen API. But the code on the
Obsidian and Desktop client still add these prefixes.
This change stops the Desktop, Obsidian clients from adding the prefix
as it is being handled by the API now. It should resolve showing
images inline in those clients as well
- Translated comments from French to English for better accessibility and understanding.
- Updated CSS comment for loading animation to reflect the change in language.
- Enhanced code readability by ensuring consistent language usage across multiple files.
- Improved user experience by clarifying the purpose of various functions and settings in the codebase.