nvim: Fix 'vim:' modeline, add paragraph highlights

Fixed bug when line in todo dropdown starts with `vim:`, `vi:`, or `:ex`
which would automatically be read by vim and tried to be set in the
editor. Removed modeline reading from vim to fix the bug, and since it
provides quite an attack vector anyway.

Added Limelight to its startup procedure to highlight the current to-do
paragraph.

nvim/.config/nvim/init.vim

@@ -148,6 +148,8 @@ au FocusLost * :wa
 " disables showing us the current mode in the command line since airline takes
 " care of it
 set noshowmode
+" turn off modeline, to ensure security observation
+set nomodeline
 
 " i feel foldlevel 2 is generally pretty usable, for headlines and similar
 set foldlevel=2

nvim/.config/nvim/spell/en.utf-8.add

@@ -52,3 +52,4 @@ JIT
 Fordism
 embeddedness
 Zapatista
+essentialism

services/.config/systemd/user/dropdown-todo.service

@@ -4,7 +4,7 @@ Description=Todo.md floating vim instance
 [Service]
 Type=simple
 # workaround to allow relative executable invocation (i.e. current users' home dir)
-ExecStart=/bin/bash -c 'alacritty --title "dropdown-todo" --class "Alacritty,scratchpad" -e nvim -c ":set nonumber norelativenumber noshowmode noruler laststatus=0 noshowcmd shortmess=F" %h/documents/records/todo.md'
+ExecStart=/bin/bash -c 'alacritty --title "dropdown-todo" --class "Alacritty,scratchpad" -e nvim -c ":set nonumber norelativenumber noshowmode noruler laststatus=0 noshowcmd shortmess=F | :Limelight" %h/documents/records/todo.md'
 Restart=always
 RestartSec=5