fix(search): keep PROCESS_TEXT on the results screen

handleExternalSearch auto-opened the article on an exact match, so the main
screen with the search bar flashed before the article covered it. Only set
the query; the article now opens from the results list.

app/src/main/java/com/example/research/MainActivity.kt

@@ -144,7 +144,7 @@ class MainActivity : ComponentActivity() {
             val text = intent.getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT)
                 ?: intent.getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT_READONLY)
             text?.toString()?.let {
-                searchViewModel.onAction(SearchAction.HandleExternalSearch(it))
+                searchViewModel.onAction(SearchAction.QueryChanged(it))
             }
         }
     }

app/src/main/java/com/example/research/feature/search/SearchViewModel.kt

@@ -29,7 +29,6 @@ sealed interface SearchAction {
     data class ArticleClicked(val entry: IndexEntry) : SearchAction
     data object ClearArticle : SearchAction
     data class SearchAndLoadArticle(val word: String) : SearchAction
-    data class HandleExternalSearch(val text: String) : SearchAction
 }
 
 class SearchViewModel(
@@ -140,7 +139,6 @@ class SearchViewModel(
             }
             SearchAction.ClearArticle -> clearArticle()
             is SearchAction.SearchAndLoadArticle -> searchAndLoadArticle(action.word)
-            is SearchAction.HandleExternalSearch -> handleExternalSearch(action.text)
         }
     }
 
@@ -321,14 +319,6 @@ class SearchViewModel(
         }
     }
 
-    fun handleExternalSearch(text: String) {
-        viewModelScope.launch {
-            val sanitizedText = text.sanitizeQuery()
-            mutableSearchQuery.value = sanitizedText
-            searchAndLoadArticle(sanitizedText)
-        }
-    }
-
     companion object {
         private const val TAG = "SearchViewModel"