fix: disable signcolumn in telescope windows (#1781)

ftplugin/TelescopePrompt.lua

@@ -8,3 +8,5 @@ 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
+
+vim.opt_local.signcolumn = "no"

ftplugin/TelescopeResults.lua

@@ -1,3 +1,5 @@
 -- Don't have scrolloff, it makes things weird.
 vim.opt_local.scrolloff = 0
 vim.opt_local.scrollbind = false
+
+vim.opt_local.signcolumn = "no"

lua/telescope/previewers/buffer_previewer.lua

@@ -369,7 +369,6 @@ previewers.new_buffer_previewer = function(opts)
         end
       end)
 
-      -- TODO(conni2461): We only have to set options once. Right?
       vim.api.nvim_win_set_option(status.preview_win, "winhl", "Normal:TelescopePreviewNormal")
       vim.api.nvim_win_set_option(status.preview_win, "signcolumn", "no")
       vim.api.nvim_win_set_option(status.preview_win, "foldlevel", 100)