feat(create): update template

Author: Mister-Hope

demo/theme-blog/src/.vuepress/styles/config.scss

@@ -1,3 +1,2 @@
 // you can change config here
-$colors: #c0392b, #d35400, #f39c12, #27ae60, #16a085, #2980b9, #8e44ad, #2c3e50,
-  #7f8c8d !default;
+$theme-color: #096dd9;

demo/theme-blog/src/.vuepress/styles/palette.scss

@@ -1,2 +1 @@
 // you can change colors here
-$theme-color: #096dd9;

demo/theme-docs/src/.vuepress/styles/config.scss

@@ -1,3 +1,2 @@
 // you can change config here
-$colors: #c0392b, #d35400, #f39c12, #27ae60, #16a085, #2980b9, #8e44ad, #2c3e50,
-  #7f8c8d !default;
+$theme-color: #096dd9;

demo/theme-docs/src/.vuepress/styles/palette.scss

@@ -1,2 +1 @@
 // you can change colors here
-$theme-color: #096dd9;

packages/create/template/blog/config/base/styles/config.scss

@@ -1,3 +1,2 @@
 // you can change config here
-$colors: #c0392b, #d35400, #f39c12, #27ae60, #16a085, #2980b9, #8e44ad, #2c3e50,
-  #7f8c8d !default;
+$theme-color: #096dd9;

packages/create/template/blog/config/base/styles/palette.scss

@@ -1,2 +1 @@
 // you can change colors here
-$theme-color: #096dd9;

packages/create/template/docs/config/base/styles/config.scss

@@ -1,3 +1,2 @@
 // you can change config here
-$colors: #c0392b, #d35400, #f39c12, #27ae60, #16a085, #2980b9, #8e44ad, #2c3e50,
-  #7f8c8d !default;
+$theme-color: #096dd9;

packages/create/template/docs/config/base/styles/palette.scss

@@ -1,2 +1 @@
 // you can change colors here
-$theme-color: #096dd9;