[Client] [Minor] Rune page save bug when naming

I am trying to organize my rune pages by category and sub-category using a couple spaces before the name on the sub-categories (ex: ADC -> Caster ADC). I found that putting 4 spaces before the name of the page give it nice spacing, but when I try to do that with page 16 and up, I get an "Unexpected platform error." Putting two spaces still works, so I'll stick with that now, but this should be looked at.

1. Go to pages 16+
2. Rename with 4 symbols behind the name of the rune page (It may only bug with - and space)
3. Apply the name and save.
4. Unexpected platform error