Add setting for minimal width of workspace buttons

i3bar/include/configuration.h

@@ -52,6 +52,7 @@ typedef struct config_t {
     struct xcb_color_strings_t colors;
     bool disable_binding_mode_indicator;
     bool disable_ws;
+    int ws_min_width;
     bool strip_ws_numbers;
     bool strip_ws_name;
     char *bar_id;

i3bar/include/mode.h

@@ -18,7 +18,7 @@
 /* Name of current binding mode and its render width */
 struct mode {
     i3String *name;
-    int width;
+    int name_width;
 };
 
 typedef struct mode mode;