perf(material/table): Use text-align: start instead of descendent dir selector.

Author: kseamon

src/material/table/table.scss

@@ -39,12 +39,8 @@ $fallbacks: m3-table.get-tokens();
 .mdc-data-table__cell {
   box-sizing: border-box;
   overflow: hidden;
-  text-align: left;
+  text-align: start;
   text-overflow: ellipsis;
-
-  [dir='rtl'] & {
-    text-align: right;
-  }
 }
 
 .mdc-data-table__cell,
@@ -103,11 +99,7 @@ $fallbacks: m3-table.get-tokens();
   text-overflow: ellipsis;
   overflow: hidden;
   outline: none;
-  text-align: left;
-
-  [dir='rtl'] & {
-    text-align: right;
-  }
+  text-align: start;
 
   .mdc-data-table__row:last-child > & {
     border-bottom: none;