feat: improve wrapped-line editing and completion cancellation

Use word-boundary wrapping and count-aware displayed-line movement in ordinary buffers. Escape cancels Blink completion before falling back. Preserve the existing ergonomics check; it was not rerun during Git cleanup.

modules/capabilities/neovim/lua-config/lua/options.lua

@@ -17,6 +17,7 @@ vim.o.timeoutlen = 300
 vim.o.updatetime = 250
 
 vim.o.breakindent = true
+vim.o.linebreak = true
 vim.o.undofile = true
 vim.o.ignorecase = true
 vim.o.smartcase = true