nvim: don't lazy-load org, fix lsp keymap

.config/nvim/lua/my/fileformats.lua

@@ -37,6 +37,5 @@ packer.use {
                 end
             }
         )
-    end,
-    ft = 'org'
+    end
 }

.config/nvim/lua/my/lsp.lua

@@ -32,7 +32,7 @@ packer.use {
             end)
             map('n', '<Leader>lrn', vim.lsp.buf.rename)
             map('n', '<Leader>la', vim.lsp.buf.code_action)
-            map('n', '<Leader>f', vim.lsp.buf.formatting)
+            map('n', '<Leader>lf', vim.lsp.buf.formatting)
 
             -- highlight symbol under cursor
             if client.resolved_capabilities.document_highlight then