refactor(e2e): use better dummy assets (#7536)

e2e/package-lock.json

@@ -15,6 +15,7 @@
         "@types/luxon": "^3.4.2",
         "@types/node": "^20.11.17",
         "@types/pg": "^8.11.0",
+        "@types/pngjs": "^6.0.4",
         "@types/supertest": "^6.0.2",
         "@typescript-eslint/eslint-plugin": "^7.1.0",
         "@typescript-eslint/parser": "^7.1.0",
@@ -26,6 +27,7 @@
         "exiftool-vendored": "^24.5.0",
         "luxon": "^3.4.4",
         "pg": "^8.11.3",
+        "pngjs": "^7.0.0",
         "prettier": "^3.2.5",
         "prettier-plugin-organize-imports": "^3.2.4",
         "socket.io-client": "^4.7.4",
@@ -1236,6 +1238,15 @@
         "node": ">=12"
       }
     },
+    "node_modules/@types/pngjs": {
+      "version": "6.0.4",
+      "resolved": "https://registry.npmjs.org/@types/pngjs/-/pngjs-6.0.4.tgz",
+      "integrity": "sha512-atAK9xLKOnxiuArxcHovmnOUUGBZOQ3f0vCf43FnoKs6XnqiambT1kkJWmdo71IR+BoXSh+CueeFR0GfH3dTlQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/semver": {
       "version": "7.5.8",
       "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.5.8.tgz",
@@ -3897,6 +3908,15 @@
         "node": ">=4"
       }
     },
+    "node_modules/pngjs": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/pngjs/-/pngjs-7.0.0.tgz",
+      "integrity": "sha512-LKWqWJRhstyYo9pGvgor/ivk2w94eSjE3RGVuzLGlr3NmD8bf7RcYGze1mNdEHRP6TRP6rMuDHk5t44hnTRyow==",
+      "dev": true,
+      "engines": {
+        "node": ">=14.19.0"
+      }
+    },
     "node_modules/postcss": {
       "version": "8.4.35",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.35.tgz",