fix: set nowrap in prompt buffer (#1499)

- fixes `strdisplaywidth` calculations for `dynamic_preview_title`

ftplugin/TelescopePrompt.lua

@@ -2,6 +2,9 @@
 vim.opt_local.formatoptions:remove "t"
 vim.opt_local.formatoptions:remove "c"
 
+-- Don't include `showbreak` when calculating strdisplaywidth
+vim.opt_local.wrap = false
+
 -- There's also no reason to enable textwidth here anyway
 vim.opt_local.textwidth = 0
 vim.opt_local.scrollbind = false