nvim: plugin: delete outcommented stuff and minor style fixes

nvim/lua/user/plugins/core.lua

@@ -21,13 +21,8 @@ return {
                     icon = "󰙨",
                     color = "#0d6efd",
                     name = "PhpUnit"
-                },
+                }
-                -- ["composer.json"] = {
+            }
-                --     icon = "",
-                --     color = "#9e9e9e",
-                --     name = "Composer"
-                -- }
-            };
         }
-    },
+    }
 }

nvim/lua/user/plugins/ui/neotree.lua

@@ -24,8 +24,6 @@ return {
                 folder_open = icons.folder.open,
                 folder_empty = icons.folder.empty,
                 folder_empty_open = icons.folder.empty_open,
-                -- The next two settings are only a fallback, if you use nvim-web-devicons and configure default icons there
-                -- then these will never be used.
                 default = icons.files.default,
             },
             modified = {