crostini: clean up SWA terminal's menu

* Rename menu item "Options" to "Settings"
* Remove menu item "Find" since we are not supporting it for now.

Bug: 1016190
Change-Id: I632cbe04c52e83822ffa40a423d96d004f57153e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2040503Reviewed-by: Joel Hockey <joelhockey@chromium.org>
Reviewed-by: Ben Wells <benwells@chromium.org>
Auto-Submit: Jason Lin <lxj@google.com>
Commit-Queue: Jason Lin <lxj@google.com>
Cr-Commit-Position: refs/heads/master@{#739168}

chrome/browser/ui/extensions/terminal_system_app_menu_model_chromeos.cc

@@ -31,14 +31,13 @@ TerminalSystemAppMenuModel::TerminalSystemAppMenuModel(
 TerminalSystemAppMenuModel::~TerminalSystemAppMenuModel() {}
 
 void TerminalSystemAppMenuModel::Build() {
-  AddItemWithStringId(IDC_OPTIONS, IDS_OPTIONS);
+  AddItemWithStringId(IDC_OPTIONS, IDS_SETTINGS);
   if (base::FeatureList::IsEnabled(features::kTerminalSystemAppSplits)) {
     AddItemWithStringId(IDC_TERMINAL_SPLIT_VERTICAL,
                         IDS_APP_TERMINAL_SPLIT_VERTICAL);
     AddItemWithStringId(IDC_TERMINAL_SPLIT_HORIZONTAL,
                         IDS_APP_TERMINAL_SPLIT_HORIZONTAL);
   }
-  AddItemWithStringId(IDC_FIND, IDS_FIND);
 }
 
 bool TerminalSystemAppMenuModel::IsCommandIdEnabled(int command_id) const {
@@ -57,8 +56,6 @@ void TerminalSystemAppMenuModel::ExecuteCommand(int command_id,
       {IDC_TERMINAL_SPLIT_VERTICAL, "splitv"},
       // Split the currently selected pane horizontally.
       {IDC_TERMINAL_SPLIT_HORIZONTAL, "splith"},
-      // Open the find dialog.
-      {IDC_FIND, "find"},
   });
 
   auto it = kCommands->find(command_id);