[GRAPH] Number of nodes need to be saved during the graph generation (and not only with cooc matrix); in order to keep all parameters.

add corpus: reactivate load button for file corpus via minimalist a posteriori validation checks in checkReady function (en attendant mieux :) )

[FEAT] terms table: basic cache for the search and pagination filters (now they're restored after page reload)

- List cleaned
- Dynamic graph saved each time
- Removing page authors (for later)