Add previous discussions list

[ParisNeo]

Al discussions are stored in a local qslite3 database. It would be a good thing to add a left bar with the list of discussions so that people can reopen and visualize previous discussions.

Any help is welcome.

[CybearWarfare]

I will create the UI for this as well as the settings section. I will combine them.

[CybearWarfare]

Something like this on md and up displays.

On sm displays becomes a row under the header.

[CybearWarfare]

Please refer to PR #6 for initial implementation of the front end.

[ParisNeo]

perfect. PR acccepted. Thanks. I'll have to add the backend wizardry to recover the discussions from the database and populate a list of entries.