Add PHP Snippets extension (zed-industries#3464)

# Zed PHP Snippets

A comprehensive collection of PHP snippets for [Zed
editor](https://zed.dev/), designed to accelerate PHP development with
intelligent autocomplete and placeholder support.

## ✨ Features

- **Complete PHP Coverage**: 100+ snippets covering all essential PHP
patterns
- **Smart Placeholders**: Tab-navigable placeholders for efficient
coding
- **Modern PHP Support**: Includes PHP 8.x features (enums, match
expressions, readonly properties, etc.)
- **OOP Ready**: Complete class, interface, trait, and abstract class
snippets
- **Database Integration**: PDO snippets for secure database operations
- **Control Structures**: All loops, conditionals, and modern syntax
patterns
- **Best Practices**: Type hints, strict types, and modern PHP
conventions

Co-authored-by: Marshall Bowers <[email protected]>

Author: 2 people

.gitmodules

@@ -2094,6 +2094,10 @@
 	path = extensions/php
 	url = https://github.com/zed-extensions/php.git
 
+[submodule "extensions/php-snippets"]
+	path = extensions/php-snippets
+	url = https://github.com/seekode/zed-php-snippets
+
 [submodule "extensions/phpcs"]
 	path = extensions/phpcs
 	url = https://github.com/GeneaLabs/zed-phpcs-lsp.git

extensions.toml

@@ -2117,6 +2117,10 @@ version = "0.0.2"
 submodule = "extensions/php"
 version = "0.4.4"
 
+[php-snippets]
+submodule = "extensions/php-snippets"
+version = "0.1.0"
+
 [phpcs]
 submodule = "extensions/phpcs"
 version = "0.1.8"