Add similar image detection

[hetkpatel]

Is your feature request related to a problem? Please describe.
Be able to group similar images/videos together. Users can then decide whether to keep all or delete some.

Next step: highlight the best from the group. (It is not blurry, and there is good lighting, etc.)

Describe the solution you'd like

• Use CNN models like ResNet and VGG19 to create embeddings
• Compare embeddings using the Cosine Similarity algorithm to group similar images
• Use an image aesthetic scoring algorithm to find the best-looking image

Additional context

• Can make this more fast and efficient using a vector database

[hetkpatel]

Currently saves the vector embeddings from each image in a .pt file. This file is very large and expensive to load every time the server needs to find similarities. A vector database might help with this problem.