Ext Module more than 5 items (#3314)

* Refactor app display to use scrollable menu

Removed specific app name text fields and replaced them with a scrollable menu for an unlimited app list.

* Refactor app display logic in ExternalModuleView

Refactor ExternalModuleView to manage app display more efficiently by using a menu instead of individual text fields.

* Update menu item color to use theme foreground color

* Ext Module: self-heal app list on transient read failures

Only skip rebuilding the scrollable app list when the reported app
count is unchanged AND the current menu already holds that many items.
If some getStandaloneAppInfo() calls failed transiently (e.g. an I2C
read glitch), the menu is incomplete; rebuilding on a later tick lets
it self-heal instead of staying permanently truncated.

Addresses Copilot review feedback on #3314.

firmware/application/apps/ui_external_module_view.hpp

@@ -49,12 +49,7 @@ class ExternalModuleView : public View {
                       &text_name,
                       &text_version,
                       &text_number_apps,
-                      &text_app1_name,
-                      &text_app2_name,
-                      &text_app3_name,
-                      &text_app4_name,
-                      &text_app5_name,
-                      &dummy});
+                      &menu_apps});
 
         text_header.set("No module connected");
 
@@ -77,15 +72,14 @@ class ExternalModuleView : public View {
     Text text_version{{24, 48, 200, 16}};
     Text text_number_apps{{24, 64, 200, 16}};
 
-    Text text_app1_name{{24, 96, 200, 16}};
-    Text text_app2_name{{24, 112, 200, 16}};
-    Text text_app3_name{{24, 128, 200, 16}};
-    Text text_app4_name{{24, 144, 200, 16}};
-    Text text_app5_name{{24, 160, 200, 16}};
+    // Scrollable, unlimited app list.
+    MenuView menu_apps{
+        {0, 84, screen_width, screen_height - 84},
+        true};
 
-    Button dummy{
-        {screen_width, 0, 0, 0},
-        ""};
+    // Rebuild the list only when the reported app count changes, so the user
+    // can scroll without it resetting every second.
+    int32_t shown_count_{-1};
 
     SignalToken signal_token_tick_second{};