Fix Git editor reword workflow and UI coverage

- show Git editor file paths instead of the submitted git command
- surface follow-up commit message editors during interactive rebase reword
- add rename-commit UI tests for editor and amend-message solution paths
- add broader embedded level solution scenarios for alternate Git workflows

app/src/main/java/solutions/tretter/githugandroid/GitMessageEditorDialog.kt

@@ -30,6 +30,7 @@ import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.graphics.SolidColor
 import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
@@ -58,7 +59,7 @@ fun GitMessageEditorDialog(
     val keyboardController = LocalSoftwareKeyboardController.current
 
     LaunchedEffect(state.invocation.command) {
-        contentFocusRequester.requestFocus()
+        runCatching { contentFocusRequester.requestFocus() }
         keyboardController?.show()
     }
 
@@ -86,6 +87,7 @@ fun GitMessageEditorDialog(
                 ) {
                     Text(
                         text = state.invocation.title,
+                        modifier = Modifier.testTag("git-message-editor-title"),
                         color = TextPrimary,
                         fontWeight = FontWeight.Bold,
                         fontSize = 20.sp,
@@ -94,11 +96,21 @@ fun GitMessageEditorDialog(
                         modifier = Modifier.fillMaxWidth(),
                         horizontalArrangement = Arrangement.spacedBy(8.dp),
                     ) {
-                        EditorButton(label = "Save", enabled = state.content.isNotBlank(), onClick = onSave)
-                        EditorButton(label = "Dismiss", onClick = onClose)
+                        EditorButton(
+                            label = "Save",
+                            enabled = state.content.isNotBlank(),
+                            modifier = Modifier.testTag("git-message-editor-save"),
+                            onClick = onSave,
+                        )
+                        EditorButton(
+                            label = "Dismiss",
+                            modifier = Modifier.testTag("git-message-editor-dismiss"),
+                            onClick = onClose,
+                        )
                     }
                     Text(
-                        text = state.invocation.command,
+                        text = state.invocation.displayPath,
+                        modifier = Modifier.testTag("git-message-editor-path"),
                         color = TextSecondary,
                         fontFamily = FontFamily.Monospace,
                         fontSize = 13.sp,
@@ -118,7 +130,8 @@ fun GitMessageEditorDialog(
                             onValueChange = onContentChange,
                             modifier = Modifier
                                 .sizeIn(minWidth = 1200.dp, minHeight = 1200.dp)
-                                .focusRequester(contentFocusRequester),
+                                .focusRequester(contentFocusRequester)
+                                .testTag("git-message-editor-content"),
                             textStyle = TextStyle(
                                 color = TextPrimary,
                                 fontFamily = FontFamily.Monospace,
@@ -141,11 +154,13 @@ fun GitMessageEditorDialog(
 private fun EditorButton(
     label: String,
     enabled: Boolean = true,
+    modifier: Modifier = Modifier,
     onClick: () -> Unit,
 ) {
     Button(
         onClick = onClick,
         enabled = enabled,
+        modifier = modifier,
         colors = ButtonDefaults.buttonColors(
             containerColor = Accent,
             contentColor = AppBackground,