fix(ui5-shellbar-search): consistent touch target size (#11974)

Same touch target for shell bar search icon as the other icon buttons in the shell bar.

Author: aleksandar-terziev

packages/fiori/src/themes/SearchField.css

@@ -205,10 +205,14 @@
 .ui5-shell-search-field-button:not([design="Emphasized"]) {
 	color: var(--sapShell_InteractiveTextColor);
 	background-color: var(--_ui5-search-elements-background);
+	min-width: var(--_ui5_search_icon_size_default);
+	height: var(--_ui5_search_icon_size_default);
 }
 
 .ui5-shell-search-field-button:not([design="Emphasized"]):hover {
 	background-color: var(--sapShell_Hover_Background);
+	border-color: var(--sapButton_Lite_Hover_BorderColor);
+	border-radius: var(--_ui5_shellbar_button_border_radius);
 }
 
 /* copy paste all button styles - could be simplified */

packages/fiori/src/themes/base/SearchField-parameters.css

@@ -19,6 +19,7 @@
 	--_ui5-search-filter_button_background_color: inherit;
 	--ui5_search_filter_button_background_active: inherit;
 	--_ui5_search_icon_size: 1.75rem;
+	--_ui5_search_icon_size_default: 2.25rem;
 	--_ui5_search_icon_padding: 0.375rem;
 	--_ui5_search_icon_hover_padding: 0.3125rem;
 	--_ui5_search_input_start_margin: 0;