[WEB] View large images on web (#189)

* Added selection icon to thumbnail

* Added micro-interaction and video file indication

* Added page to add page

* Added image viewer

* navigate assets

* Added separate component for viewing the video file

* Added FFmpeg modules

* Added correct content-type header for serving image file

* Added loading spinner

server/package.json

@@ -45,6 +45,7 @@
     "diskusage": "^1.1.3",
     "dotenv": "^14.2.0",
     "exifr": "^7.1.3",
+    "fluent-ffmpeg": "^2.1.2",
     "joi": "^17.5.0",
     "lodash": "^4.17.21",
     "passport": "^0.5.2",