Feature: show full posts in notifications

**Is your feature request related to a problem? Please describe.**
I dont like that I have to click on "Read More" in the notifications to see the whole post.

**Describe the solution you'd like**
I´d like a setting switch that shows full posts in the notifications, perhaps separated for likes/RTs and "normal" posts.

**Describe alternatives you've considered**
Use another client ;-)

Start by locating the notifications view and the settings UI that controls notification behavior. Trace how posts are truncated behind “Read More,” then determine where a preference could distinguish likes/boosts from normal posts. Done means users can enable full post content in notifications through a setting and the preference applies to the intended notification types.

Written by the indexing model from the issue text.