Dactyl Manuform 5x6, 5x7, and 6x6: QMK Configurator fixes and partial code clean-up (#5307)

* Tidy up 5x6.h

- replaced tabs with spaces (QMK convention)
- aligned layout macro visually

* Fix Configurator support for Dactyl Manuform 5x6

- layout macro had the wrong name in info.json

* Tidy up 5x7.h

- replaced tabs with spaces (QMK convention)
- aligned layout macro visually

* Fix Configurator support for Dactyl Manuform 5x7

- corrected keyboard height
- layout macro had the wrong name in info.json

* Tidy up 6x6.h

- replaced tabs with spaces (QMK convention)
- aligned layout macro visually

* Fix Configurator support for Dactyl Manuform 6x6

- layout macro had the wrong name in info.json

keyboards/handwired/dactyl_manuform/5x6/5x6.h

@@ -34,7 +34,5 @@
     { R20, R21, R22, R23, R24,   R25   }, \
     { R30, R31, R32, R33, R34,   R35   }, \
     { R40, R41, R42, R43, KC_NO, KC_NO }, \
-		{ R50, R51, R52, R53, KC_NO, KC_NO }, \
+    { R50, R51, R52, R53, KC_NO, KC_NO }  \
 }
-
-

keyboards/handwired/dactyl_manuform/5x6/info.json

@@ -5,7 +5,7 @@
     "width": 17,
     "height": 8,
     "layouts": {
-        "LAYOUT": {
+        "LAYOUT_5x6": {
             "layout": [
                 {"label":"L00", "x":0, "y":0},
                 {"label":"L01", "x":1, "y":0},

keyboards/handwired/dactyl_manuform/5x7/info.json

@@ -3,9 +3,9 @@
     "url": "",
     "maintainer": "qmk",
     "width": 17,
-    "height": 16,
+    "height": 8,
     "layouts": {
-        "LAYOUT": {
+        "LAYOUT_5x7": {
             "layout": [
                 {"label":"L11", "x":0, "y":0},
                 {"label":"L12", "x":1, "y":0},

keyboards/handwired/dactyl_manuform/6x6/6x6.h

@@ -38,7 +38,5 @@
     { R30, R31, R32, R33, R34,   R35   }, \
     { R40, R41, R42, R43, R44,   R45   }, \
     { R50, R51, R52, R53, KC_NO, KC_NO }, \
-		{ R60, R61, R62, R63, KC_NO, KC_NO }, \
+    { R60, R61, R62, R63, KC_NO, KC_NO }  \
 }
-
-

keyboards/handwired/dactyl_manuform/6x6/info.json

@@ -5,7 +5,7 @@
     "width": 17,
     "height": 9,
     "layouts": {
-        "LAYOUT": {
+        "LAYOUT_6x6": {
             "layout": [
                 {"label":"L00", "x":0, "y":0},
                 {"label":"L01", "x":1, "y":0},