set tuned param values as input values in learner section

[Coorsaa]

Right now, we always have the param defaults in the input boxes as predefined values in the learner section. It would be nice if we could change them to the tuned ones (after tuning).

[florianfendt]

@Coorsaa
Shouldn't this be closed or did I oversee sth and this is not working for some corner cases?

[Coorsaa]

Example: If you tune the randomForest learner, e.g. ntree = 1000. If you transfer the hyperpar to the learner it has now ntree = 1000 which is totally fine. However, if you go a step back to the learner section, the numericInput of ntree has still the default value of 500 in it.

[florianfendt]

connected to #113