docs: Reorganize introduction (#41387)

Release Notes:
- Remove Windows/Linux from Getting Started
- Consolidate download & system into new Installation page
- Move Remote Dev out of Windows and into Remote Development
- Add Uninstall page
- Add updates page
- Remove addl learning materials from intro

docs/src/uninstall.md

@@ -0,0 +1,113 @@
+# Uninstall
+
+This guide covers how to uninstall Zed on different operating systems.
+
+## macOS
+
+### Standard Installation
+
+If you installed Zed by downloading it from the website:
+
+1. Quit Zed if it's running
+2. Open Finder and go to your Applications folder
+3. Drag Zed to the Trash (or right-click and select "Move to Trash")
+4. Empty the Trash
+
+### Homebrew Installation
+
+If you installed Zed using Homebrew, use the following command:
+
+```sh
+brew uninstall --cask zed
+```
+
+Or for the preview version:
+
+```sh
+brew uninstall --cask zed@preview
+```
+
+### Removing User Data (Optional)
+
+To completely remove all Zed configuration files and data:
+
+1. Open Finder
+2. Press `Cmd + Shift + G` to open "Go to Folder"
+3. Delete the following directories if they exist:
+   - `~/Library/Application Support/Zed`
+   - `~/Library/Saved Application State/dev.zed.Zed.savedState`
+   - `~/Library/Logs/Zed`
+   - `~/Library/Caches/dev.zed.Zed`
+
+## Linux
+
+### Standard Uninstall
+
+If Zed was installed using the default installation script, run:
+
+```sh
+zed --uninstall
+```
+
+You'll be prompted whether to keep or delete your preferences. After making a choice, you should see a message that Zed was successfully uninstalled.
+
+If the `zed` command is not found in your PATH, try:
+
+```sh
+$HOME/.local/bin/zed --uninstall
+```
+
+or:
+
+```sh
+$HOME/.local/zed.app/bin/zed --uninstall
+```
+
+### Package Manager
+
+If you installed Zed using a package manager (such as Flatpak, Snap, or a distribution-specific package manager), consult that package manager's documentation for uninstallation instructions.
+
+### Manual Removal
+
+If the uninstall command fails or Zed was installed to a custom location, you can manually remove:
+
+- Installation directory: `~/.local/zed.app` (or your custom installation path)
+- Binary symlink: `~/.local/bin/zed`
+- Configuration and data: `~/.config/zed`
+
+## Windows
+
+### Standard Installation
+
+1. Quit Zed if it's running
+2. Open Settings (Windows key + I)
+3. Go to "Apps" > "Installed apps" (or "Apps & features" on Windows 10)
+4. Search for "Zed"
+5. Click the three dots menu next to Zed and select "Uninstall"
+6. Follow the prompts to complete the uninstallation
+
+Alternatively, you can:
+
+1. Open the Start menu
+2. Right-click on Zed
+3. Select "Uninstall"
+
+### Removing User Data (Optional)
+
+To completely remove all Zed configuration files and data:
+
+1. Press `Windows key + R` to open Run
+2. Type `%APPDATA%` and press Enter
+3. Delete the `Zed` folder if it exists
+4. Press `Windows key + R` again, type `%LOCALAPPDATA%` and press Enter
+5. Delete the `Zed` folder if it exists
+
+## Troubleshooting
+
+If you encounter issues during uninstallation:
+
+- **macOS/Windows**: Ensure Zed is completely quit before attempting to uninstall. Check Activity Manager (macOS) or Task Manager (Windows) for any running Zed processes.
+- **Linux**: If the uninstall script fails, check the error message and consider manual removal of the directories listed above.
+- **All platforms**: If you want to start fresh while keeping Zed installed, you can delete the configuration directories instead of uninstalling the application entirely.
+
+For additional help, see our [Linux-specific documentation](./linux.md) or visit the [Zed community](https://zed.dev/community).