[#70167] Harmonize filter close button padding

Fixes insufficient padding for filter close button on Project members
page.

https://community.openproject.org/wp/70167

Author: myabc

frontend/src/global_styles/content/_advanced_filters.sass

@@ -46,16 +46,13 @@ $advanced-filters--grid-gap: 10px
 
   .advanced-filters--close
     position: absolute
-    top: 0.75rem
-    right: 0.75rem
+    top: var(--stack-padding-condensed)
+    right: var(--stack-padding-condensed)
     z-index: 2
 
-  .advanced-filters--filters
-    margin-top: 20px
-
 .advanced-filters--filters
   list-style-type: none
-  margin: 0
+  margin: var(--base-size-32) 0 0 0
 
   > .advanced-filters--filter
     display: grid

frontend/src/global_styles/content/_simple_filters.sass

@@ -39,7 +39,7 @@ $filters--border-color: var(--borderColor-default) !default
   grid-template-columns: repeat(auto-fill, minmax(300px, 1fr))
   grid-gap:         10px 40px
   list-style-type:  none
-  margin:           10px 0 0 0
+  margin:           var(--base-size-32) 0 0 0
 
 .simple-filters--container
   @extend %filters--container
@@ -60,8 +60,8 @@ $filters--border-color: var(--borderColor-default) !default
 
   .simple-filters--close
     position: absolute
-    top: 5px
-    right: 5px
+    top: var(--stack-padding-condensed)
+    right: var(--stack-padding-condensed)
     z-index: 2
 
 .simple-filters--filters