Add extension-key to all project composer.json files

extensions/t3o_donation/composer.json

 {
-  "name": "t3o/t3o_donation",
-  "description": "An extension  to make donations. Used on typo3.org",
-  "type": "typo3-cms-extension",
-  "license": [
-    "GPL-3.0+"
-  ],
-  "keywords": [
-    "TYPO3 CMS",
-    "Donation"
-  ],
-  "autoload": {
-    "psr-4": {
-      "T3o\\T3oDonation\\": "Classes/"
-    }
-  },
-  "replace": {
-    "t3o_donation": "self.version",
-    "typo3-ter/t3o_donation": "self.version"
-  },
-  "version": "1.0.0"
+	"name": "t3o/t3o_donation",
+	"description": "An extension  to make donations. Used on typo3.org",
+	"type": "typo3-cms-extension",
+	"license": [
+		"GPL-3.0+"
+	],
+	"keywords": [
+		"TYPO3 CMS",
+		"Donation"
+	],
+	"autoload": {
+		"psr-4": {
+			"T3o\\T3oDonation\\": "Classes/"
+		}
+	},
+	"extra": {
+		"typo3/cms": {
+			"extension-key": "t3o_donation"
+		}
+	},
+	"replace": {
+		"t3o_donation": "self.version",
+		"typo3-ter/t3o_donation": "self.version"
+	},
+	"version": "1.0.0"
 }

extensions/t3o_planet/composer.json

 {
-  "name": "t3o/t3o_planet",
-  "description": "Planet TYPO3 is the collection of news/articles/blog from the TYPO3 world.",
-  "type": "typo3-cms-extension",
-  "license": ["GPL-3.0+"],
-  "keywords": ["TYPO3 CMS", "Planet TYPO3"],
-  "support": {
-    "email": "maintenance@typo3.org",
-    "issues": "https://gitlab.typo3.org/t3o/typo3.org/issues"
-  },
-  "version": "1.0.0",
-  "require": {
-    "typo3/cms-core": "^10.4"
-  },
-  "autoload": {
-    "psr-4": {
-      "T3o\\T3oPlanet\\": "Classes/"
-    }
-  },
-  "replace": {
-    "t3o_planet": "self.version",
-    "typo3-ter/t3o_planet": "self.version"
-  }
+	"name": "t3o/t3o_planet",
+	"description": "Planet TYPO3 is the collection of news/articles/blog from the TYPO3 world.",
+	"type": "typo3-cms-extension",
+	"license": [
+		"GPL-3.0+"
+	],
+	"keywords": [
+		"TYPO3 CMS",
+		"Planet TYPO3"
+	],
+	"support": {
+		"email": "maintenance@typo3.org",
+		"issues": "https://gitlab.typo3.org/t3o/typo3.org/issues"
+	},
+	"version": "1.0.0",
+	"require": {
+		"typo3/cms-core": "^10.4"
+	},
+	"extra": {
+		"typo3/cms": {
+			"extension-key": "t3o_planet"
+		}
+	},
+	"autoload": {
+		"psr-4": {
+			"T3o\\T3oPlanet\\": "Classes/"
+		}
+	},
+	"replace": {
+		"t3o_planet": "self.version",
+		"typo3-ter/t3o_planet": "self.version"
+	}
 }

extensions/t3org_layout/composer.json

 {
-  "name": "t3o/t3org_layout",
-  "description": "Extension providing special things for typo3.org website",
-  "type": "typo3-cms-extension",
-  "license": [
-    "GPL-3.0+"
-  ],
-  "keywords": [
-    "TYPO3 CMS",
-    "typo3.org"
-  ],
-  "autoload": {
-    "psr-4": {
-      "T3o\\T3orgLayout\\": "Classes/"
-    }
-  },
-  "replace": {
-    "t3org_layout": "self.version"
-  },
-  "version": "1.0.0"
+	"name": "t3o/t3org_layout",
+	"description": "Extension providing special things for typo3.org website",
+	"type": "typo3-cms-extension",
+	"license": [
+		"GPL-3.0+"
+	],
+	"keywords": [
+		"TYPO3 CMS",
+		"typo3.org"
+	],
+	"extra": {
+		"typo3/cms": {
+			"extension-key": "t3org_layout"
+		}
+	},
+	"autoload": {
+		"psr-4": {
+			"T3o\\T3orgLayout\\": "Classes/"
+		}
+	},
+	"replace": {
+		"t3org_layout": "self.version"
+	},
+	"version": "1.0.0"
 }

extensions/typo3_roadmap/composer.json

 {
-    "name": "t3o/typo3-roadmap",
-    "description": "TYPO3 Roadmap Plugin for TYPO3.org",
-    "type": "typo3-cms-extension",
-    "license": ["GPL-2.0-or-later"],
-    "keywords": ["TYPO3 CMS", "Roadmap"],
-    "support": {
-        "email": "maintenance@typo3.org",
-        "issues": "https://git-t3o.typo3.org/t3o/typo3_roadmap/issues"
-    },
-    "require": {
-        "typo3/cms-core": "^10.4 || ^11.0",
-        "typo3/cms-extbase": "^10.4 || ^11.0"
-    },
-    "autoload": {
-        "psr-4": {
-            "T3o\\Typo3Roadmap\\": "Classes/"
-        }
-    },
-    "extra": {
-        "typo3/cms": {
-            "extension-key": "typo3_roadmap"
-        }
-    },
-    "replace": {
-        "typo3-ter/typo3_roadmap": "self.version",
-        "t3o/typo3_roadmap": "self.version"
-    }
+	"name": "t3o/typo3-roadmap",
+	"description": "TYPO3 Roadmap Plugin for TYPO3.org",
+	"type": "typo3-cms-extension",
+	"license": [
+		"GPL-2.0-or-later"
+	],
+	"keywords": [
+		"TYPO3 CMS",
+		"Roadmap"
+	],
+	"support": {
+		"email": "maintenance@typo3.org",
+		"issues": "https://git-t3o.typo3.org/t3o/typo3_roadmap/issues"
+	},
+	"require": {
+		"typo3/cms-core": "^10.4 || ^11.0",
+		"typo3/cms-extbase": "^10.4 || ^11.0"
+	},
+	"autoload": {
+		"psr-4": {
+			"T3o\\Typo3Roadmap\\": "Classes/"
+		}
+	},
+	"extra": {
+		"typo3/cms": {
+			"extension-key": "typo3_roadmap"
+		}
+	},
+	"replace": {
+		"typo3-ter/typo3_roadmap": "self.version",
+		"t3o/typo3_roadmap": "self.version"
+	}
 }