fix: set vimrc and emacs indention according to .editorconfig

.dir-locals.el

@@ -21,5 +21,5 @@
              (sh-indentation . 4)))
  (awk-mode . ((c-basic-offset . 8)))
  (nil . ((indent-tabs-mode . nil)
-         (tab-width . 8)
+         (tab-width . 4)
          (fill-column . 79))) )

.vimrc

@@ -5,11 +5,11 @@
 " Characters width is set to 109 for .c and XML but for everything else 79.
 " If you update this file make sure to update .dir-locals.el & .editorconfig
 
-set tabstop=8
-set shiftwidth=8
+set tabstop=4
+set shiftwidth=4
 set expandtab
 set makeprg=GCC_COLORS=\ make
 set tw=79
 au BufRead,BufNewFile *.xml set tw=109 shiftwidth=2 smarttab
 au FileType sh set tw=80 shiftwidth=4 smarttab
-au FileType c set tw=109
+au FileType c set tw=109 shiftwidth=8 tabstop=8 smarttab expandtab