refactor(scss): remove display.scss and its import

src/static/scss/display.scss

@@ -1,24 +0,0 @@
-// 显示类型
-.block {
-  display: block;
-}
-
-.inline-block {
-  display: inline-block;
-}
-
-.flex {
-  display: flex;
-}
-
-.grid {
-  display: grid;
-}
-
-.grid-cols-2 {
-  grid-template-columns: repeat(2, minmax(0, 1fr));
-}
-
-.grid-cols-3 {
-  grid-template-columns: repeat(3, minmax(0, 1fr));
-}

src/static/scss/index.scss

@@ -1,6 +1,5 @@
 @import "./background.scss";
 @import "./border.scss";
-@import "./display.scss";
 @import "./flex.scss";
 @import "./height.scss";
 @import "./font-family.scss";