feat: restructure keymaps and fix Lua configuration

- Restructure keymaps into modular folder system
  - Create keymaps/ folder with organized files
  - Separate keymaps by category (general, personal, lsp, telescope, plugins)
  - Auto-loading system for better maintainability

- Fix Lua configuration issues
  - Add compatibility layer for deprecated APIs
  - Fix snacks.nvim configuration
  - Disable latex support in render-markdown
  - Improve LSP configuration

- Enhance function navigation
  - Restore and improve LSP keymaps
  - Add comprehensive Telescope integration
  - Fix conflicting keymaps

- Improve overall Neovim setup
  - Better options configuration
  - Enhanced plugin configurations
  - Cleaner code organization

lua/cargdev/core/keymaps/README.md

@@ -0,0 +1,98 @@
+# Keymaps Structure
+
+This folder contains all the keymaps organized by category for better maintainability.
+
+## 📁 File Structure
+
+```
+keymaps/
+├── README.md          # This file
+├── general.lua        # General keymaps (leader, basic navigation)
+├── personal.lua       # Personal workflow keymaps
+├── lsp.lua           # LSP and function navigation keymaps
+├── telescope.lua     # Telescope search and navigation keymaps
+└── plugins.lua       # Plugin-specific keymaps
+```
+
+## 🔧 How It Works
+
+The main `keymaps.lua` file automatically loads all `.lua` files from this folder. Each file contains keymaps for a specific category:
+
+### **general.lua**
+- Leader key setup
+- Basic navigation
+- General utility keymaps
+
+### **personal.lua**
+- Your personal workflow keymaps
+- File management
+- Window management
+- Coding shortcuts
+- Copilot integration
+
+### **lsp.lua**
+- Function navigation (`gd`, `gi`, `gr`, `gt`)
+- Symbol search (`<leader>ds`, `<leader>ws`)
+- Code actions and documentation
+- Diagnostics
+
+### **telescope.lua**
+- File search (`<leader>ff`, `<leader>fs`)
+- Buffer management
+- Git integration
+- Help and commands
+
+### **plugins.lua**
+- NvimTree
+- Comment
+- DAP (debugging)
+- Trouble
+- Terminal
+- Session management
+- Git conflicts
+- LeetCode
+- And more...
+
+## ➕ Adding New Keymaps
+
+To add new keymaps:
+
+1. **Choose the appropriate file** based on the category
+2. **Add your keymaps** using the standard format:
+   ```lua
+   keymap.set("n", "<leader>key", "<cmd>command<cr>", { desc = "Description" })
+   ```
+3. **The keymaps will be automatically loaded** when Neovim starts
+
+## 🎯 Keymap Categories
+
+| Category | File | Description |
+|----------|------|-------------|
+| General | `general.lua` | Basic setup and utilities |
+| Personal | `personal.lua` | Your workflow shortcuts |
+| LSP | `lsp.lua` | Function navigation and LSP features |
+| Search | `telescope.lua` | File and text search |
+| Plugins | `plugins.lua` | Plugin-specific functionality |
+
+## 🔄 Benefits
+
+- **Modular**: Each category is in its own file
+- **Maintainable**: Easy to find and modify specific keymaps
+- **Scalable**: Easy to add new categories
+- **Organized**: Clear separation of concerns
+- **Auto-loading**: No need to manually import files
+
+## 🚀 Usage
+
+The keymaps are automatically loaded when Neovim starts. You can:
+
+- **View all keymaps**: `<leader>fk` (Telescope keymaps)
+- **Search keymaps**: Use Telescope to search through your keymaps
+- **Modify keymaps**: Edit the appropriate file and restart Neovim
+
+## 📝 Notes
+
+- All files are automatically loaded by `keymaps.lua`
+- Each file should have its own `local keymap = vim.keymap` declaration
+- Use descriptive comments to organize keymaps within each file
+- Follow the existing naming conventions for consistency