Fix layouts for S7 Elephant in info.json (#4989)

The following layouts were being rendered with 6.75u Spacebars instead of 7u:

- LAYOUT_ansi_blocker_7u
- LAYOUT_ansi_blocker_7u_small_lshift
- LAYOUT_ansi_blocker_7u_small_bspc
- LAYOUT_ansi_blocker_7u_small_lshift_small_bspc
- LAYOUT_iso_blocker_7u

This commit corrects this issue.

Flagged by yanfali on QMK Discord.

keyboards/s7_elephant/info.json

@@ -1322,8 +1322,8 @@
                 {"label":"Ctrl", "x":2, "y":4, "w":1.5},
                 {"label":"Win", "x":3.5, "y":4},
                 {"label":"Alt", "x":4.5, "y":4, "w":1.5},
-                {"x":6, "y":4, "w":6.75},
-                {"label":"Fn", "x":12.75, "y":4, "w":1.5},
+                {"label":"Space", "x":6, "y":4, "w":7},
+                {"label":"Fn", "x":13, "y":4, "w":1.5},
                 {"label":"Left", "x":15, "y":4},
                 {"label":"Down", "x":16, "y":4},
                 {"label":"Right", "x":17, "y":4}
@@ -1399,8 +1399,8 @@
                 {"label":"Ctrl", "x":2, "y":4, "w":1.5},
                 {"label":"Win", "x":3.5, "y":4},
                 {"label":"Alt", "x":4.5, "y":4, "w":1.5},
-                {"x":6, "y":4, "w":6.75},
-                {"label":"Fn", "x":12.75, "y":4, "w":1.5},
+                {"label":"Space", "x":6, "y":4, "w":7},
+                {"label":"Fn", "x":13, "y":4, "w":1.5},
                 {"label":"Left", "x":15, "y":4},
                 {"label":"Down", "x":16, "y":4},
                 {"label":"Right", "x":17, "y":4}
@@ -1476,8 +1476,8 @@
                 {"label":"Ctrl", "x":2, "y":4, "w":1.5},
                 {"label":"Win", "x":3.5, "y":4},
                 {"label":"Alt", "x":4.5, "y":4, "w":1.5},
-                {"x":6, "y":4, "w":6.75},
-                {"label":"Fn", "x":12.75, "y":4, "w":1.5},
+                {"label":"Space", "x":6, "y":4, "w":7},
+                {"label":"Fn", "x":13, "y":4, "w":1.5},
                 {"label":"Left", "x":15, "y":4},
                 {"label":"Down", "x":16, "y":4},
                 {"label":"Right", "x":17, "y":4}
@@ -1554,8 +1554,8 @@
                 {"label":"Ctrl", "x":2, "y":4, "w":1.5},
                 {"label":"Win", "x":3.5, "y":4},
                 {"label":"Alt", "x":4.5, "y":4, "w":1.5},
-                {"x":6, "y":4, "w":6.75},
-                {"label":"Fn", "x":12.75, "y":4, "w":1.5},
+                {"label":"Space", "x":6, "y":4, "w":7},
+                {"label":"Fn", "x":13, "y":4, "w":1.5},
                 {"label":"Left", "x":15, "y":4},
                 {"label":"Down", "x":16, "y":4},
                 {"label":"Right", "x":17, "y":4}
@@ -2337,8 +2337,8 @@
                 {"label":"Ctrl", "x":2, "y":4, "w":1.5},
                 {"label":"Win", "x":3.5, "y":4},
                 {"label":"Alt", "x":4.5, "y":4, "w":1.5},
-                {"x":6, "y":4, "w":6.75},
-                {"label":"Fn", "x":12.75, "y":4, "w":1.5},
+                {"label":"Space", "x":6, "y":4, "w":7},
+                {"label":"Fn", "x":13, "y":4, "w":1.5},
                 {"label":"Left", "x":15, "y":4},
                 {"label":"Down", "x":16, "y":4},
                 {"label":"Right", "x":17, "y":4}