Improve rendering performance of the Vue file list
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The current file list renders as a `<table />` which renders fast for smaller lists, when we start to render larger lists the `<table />` starts to render slower the more items we have in the list.
## Proposal
Refactor the `<table />` into `<div />` etc.
We also need to think about accessibility when doing this.
/cc @andr3
issue