Replace jimp with sharp (#6774)

* add probe image size and max image size

* replace jimp and image-probe with sharp

* better name for test

* resize with just path

* resize thumb inplace

* use filename

install/package.json

@@ -51,7 +51,6 @@
         "helmet": "^3.11.0",
         "html-to-text": "^4.0.0",
         "ipaddr.js": "^1.5.4",
-        "jimp": "0.5.0",
         "jquery": "^3.2.1",
         "jsesc": "2.5.1",
         "json-2-csv": "^2.1.2",
@@ -97,6 +96,7 @@
         "sanitize-html": "^1.16.3",
         "semver": "^5.4.1",
         "serve-favicon": "^2.4.5",
+        "sharp": "0.20.8",
         "sitemap": "^1.13.0",
         "socket.io": "2.1.1",
         "socket.io-adapter-cluster": "^1.0.1",