nvim: Add telescope to switch rust-analyzer target

tree/.config/nvim/lua/keys.lua

@@ -4,6 +4,7 @@ vim.keymap.set('n', '<leader>fg', telescope.live_grep, {})
 vim.keymap.set('n', '<leader>fb', telescope.buffers, {})
 vim.keymap.set('n', '<leader>fh', telescope.help_tags, {})
 vim.keymap.set('n', '<leader>fs', telescope.treesitter, {}) -- find symbols
+vim.keymap.set('n', '<leader>ft', pick_rust_target, {}) -- find symbols
 vim.keymap.set('n', 'U', ":redo<Enter>", {})
 vim.keymap.set('n', '<leader>p', ":b#<Enter>", {}) -- goto previous buffer