usability improvements

- add autocmds to highlight yanking and disabling line numbers in Oil
- lsp-zero: fix 'gd' command by setting 'preserve_mappings' to false
- lualine: show clock, simplify statusline, shorten mode name
- oil: decrease float window size, add 'q' hotkey to close window
- prefs: show line numbers again, disable additional mode showing
- add todo-comments.nvim
- remap: add keymap to find all TODOs/FIXME/XXX etc.

lua/weeheavy/prefs.lua

@@ -10,7 +10,7 @@ vim.opt.ignorecase = true
 vim.opt.smartcase = true
 
 -- Show line numbers default
---vim.opt.number = true
+vim.opt.number = true
 
 -- Show relative line numbers
 vim.opt.relativenumber = true
@@ -66,3 +66,6 @@ vim.opt.splitbelow = true
 
 -- Split windows appear to the right instead of left
 vim.opt.splitright = true
+
+-- Mode is shown in lualine, so we don't need it one line below
+vim.opt.showmode = false