fix dialog theme, make subject one line

app/src/main/java/gr/thmmy/mthmmy/editorview/EditorView.java

@@ -201,7 +201,7 @@ public class EditorView extends LinearLayout {
                 linkText.getEditText().setText(
                         editText.getText().toString().substring(editText.getSelectionStart(), editText.getSelectionEnd()));
             }
-            new AlertDialog.Builder(context, R.style.AppCompatAlertDialogStyleAccent)
+            new AlertDialog.Builder(context, R.style.AppTheme_Dark_Dialog)
                     .setTitle(R.string.dialog_create_link_title)
                     .setView(dialogBody)
                     .setPositiveButton(R.string.ok, (dialog, which) -> {

app/src/main/res/layout/activity_create_content.xml

@@ -39,7 +39,11 @@
 
             <android.support.design.widget.TextInputEditText
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content" />
+                android:layout_height="wrap_content"
+                android:lines="1"
+                android:maxLines="1"
+                android:ellipsize="end"
+                android:inputType="text"/>
         </android.support.design.widget.TextInputLayout>
 
         <gr.thmmy.mthmmy.editorview.EditorView