word list words limit

[tszlk]

the current word list only display a certain number of entries. Words saved after reaching the limit is still saved, but it doesn't display until some previous entries is deleted.

[tszlk]

even if you consider the storage limit for localstorage for google chrome. the current limit is still too low and can reasonably increased a few hundred times.

[PabloRomanH]

This seems reasonable and easy enough. I'll go ahead with it.