Fix elfeed-feeds for elfeed-protocol 1.0 change

This commit log for bergheim's Emacs dotfiles captures a significant cleanup and performance overhaul. The author replaces writeroom with olivetti for better split-window support, swaps org-alert for the built-in appt package to fix broken appointment notifications, and removes dead code like unused smartparens workarounds and inert aggressive-indent settings. A notable addition is a custom ghostel integration that adds text objects for shell output and prompt navigation keys, addressing specific friction points with evil mode interactions.

The most concrete technical win is a startup speed optimization where trimming default org-modules and deferring org-babel language loading reduced the first org buffer open time from 3.1 seconds to 0.6 seconds. The log demonstrates careful maintenance by fixing subtle bugs, such as ensuring capture hooks run after copy-link adds IDs and correcting fboundp checks that prevented buffer switcher fallbacks from working. It is a solid, pragmatic set of changes that prioritizes responsiveness and removing unused dependencies over adding new features.