Update .editorconfig and reformat code

The settings for yaml files regularly get confused and I don't like it,
so I add them to .editorconfig to make the settings always the same.

.editorconfig

@@ -3,14 +3,29 @@ root = true
 [*]
 charset = utf-8
 end_of_line = lf
-indent_size = 2
+indent_size = 4
 indent_style = space
 insert_final_newline = true
 max_line_length = 100
 tab_width = 4
+ij_visual_guides = 50, 72, 80, 100
+ij_wrap_on_typing = false
 
 [Makefile]
 indent_style = tab
 
 [*.go]
 indent_style = tab
+
+[{*.yaml,*.yml}]
+indent_size = 2
+ij_yaml_align_values_properties = do_not_align
+ij_yaml_autoinsert_sequence_marker = true
+ij_yaml_block_mapping_on_new_line = false
+ij_yaml_indent_sequence_value = true
+ij_yaml_keep_indents_on_empty_lines = false
+ij_yaml_keep_line_breaks = true
+ij_yaml_sequence_on_new_line = false
+ij_yaml_space_before_colon = false
+ij_yaml_spaces_within_braces = false
+ij_yaml_spaces_within_brackets = false