nvim: Remove ctrlsf and thesaurus_query

Removed the two plugins since I *never* used them in months.
Improved startup slightly by conditionally loading some filetype and
command plugins.

nvim/.config/nvim/lua/maps.lua

@@ -175,10 +175,6 @@ vim.g.nv_fzf_binds = {
 map.n.nore['<leader>n'] = ':NV<cr>'
 map.n.nore['<leader>N'] = ':NV!<cr>'
 
--- PLUGIN: CtrlSF
--- (non-fuzzy) search in wiki with ctrlsf, in fullscreen window
-map.n.nore['<leader>wf'] = ':call SearchNotes()<cr>'
-
 -- Mostly dealing with Prose writing from here on out
 -- Format current Paragraph (esp useful in prose writing)
 map.n.nore.silent['<localleader>q'] = 'gqap'