Updates default text for tip banner

Resolves brave/brave-browser#4616

components/resources/brave_components_strings.grd

@@ -426,8 +426,8 @@
       <message name="IDS_BRAVE_UI_REWARDS_BACKUP_TEXT1" desc="">Backup your Wallet</message>
       <message name="IDS_BRAVE_UI_REWARDS_BACKUP_TEXT2" desc="">Keep this recovery key safe.</message>
       <message name="IDS_BRAVE_UI_REWARDS_BACKUP_TEXT3" desc="">You can always use this key to get your wallet back if something happens to your browser or computer. But make sure to protect it — anyone who gets this key could steal your wallet. It’s probably safest to write it down on a piece of paper, or wherever else you keep important info.</message>
-      <message name="IDS_BRAVE_UI_REWARDS_BANNER_TEXT1" desc="">You can support this site by sending a tip. It’s a way of thanking them for making great content. Verified content creators get paid for their tips during the first week of each calendar month.</message>
-      <message name="IDS_BRAVE_UI_REWARDS_BANNER_TEXT2" desc="">If you like, you can schedule monthly tips to support this site on a continuous basis.</message>
+      <message name="IDS_BRAVE_UI_REWARDS_BANNER_TEXT1" desc="">You can support this content creator by sending a tip. It’s a way of thanking them for making great content. Verified creators get paid for their tips during the first week of each calendar month.</message>
+      <message name="IDS_BRAVE_UI_REWARDS_BANNER_TEXT2" desc="">If you like, you can schedule monthly tips to support this creator on a continuous basis.</message>
       <message name="IDS_BRAVE_UI_REWARDS_CONTRIBUTE" desc="">Auto-Contribute</message>
       <message name="IDS_BRAVE_UI_REWARDS_CONTRIBUTE_ATTENTION" desc="">Attention</message>
       <message name="IDS_BRAVE_UI_REWARDS_CONTRIBUTE_ATTENTION_SCORE" desc="">Attention</message>