Installing extensions UI improvements (#1522)

Signed-off-by: Roman <ixrock@gmail.com>

package.json

@@ -225,7 +225,6 @@
     "electron-devtools-installer": "^3.1.1",
     "electron-updater": "^4.3.1",
     "electron-window-state": "^5.0.3",
-    "file-type": "^14.7.1",
     "filenamify": "^4.1.0",
     "fs-extra": "^9.0.1",
     "handlebars": "^4.7.6",