ui: UI&UX enhance, bug fixes

Co-authored-by: panda <panda_dtdyy@outlook.com>

packages/ui-default/components/autocomplete/autocomplete.page.styl

@@ -53,7 +53,7 @@
     white-space: nowrap
     text-overflow: ellipsis
 
-  &>span.bp3-icon>svg
+  &>span.bp4-icon>svg
     font-size: 12px
     cursor: pointer
     padding: 4px
@@ -78,19 +78,19 @@
     &>div
       flex-grow: 1
 
-    &>span.bp3-icon>svg
+    &>span.bp4-icon>svg
       color: transparent
 
     &[aria-selected='true']
       background-color: #fafafa
       font-weight: 600
 
-      &>span.bp3-icon>svg
+      &>span.bp4-icon>svg
         color: #1890ff
 
     &[data-focus='true']
       background-color: #e6f7ff
       cursor: pointer
 
-      &>span.bp3-icon>svg
+      &>span.bp4-icon>svg
         color: currentColor