Implemented the text element filter

I18N Commander/Processor/TextElementProcessor.cs

@@ -8,10 +8,14 @@ namespace Processor;
 public static class TextElementProcessor
 {
     // Load all text elements for one particular section:
-    public static async Task<List<TextElement>> GetTextElements(Section section)
+    public static async Task<List<TextElement>> GetTextElements(Section section, string filterTerm)
     {
         await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();
-        return await db.TextElements.Where(n => n.Section == section).OrderBy(n => n.Name).ThenBy(n => n.Id).ToListAsync();
+        
+        if(string.IsNullOrWhiteSpace(filterTerm))
+            return await db.TextElements.Where(n => n.Section == section).OrderBy(n => n.Name).ThenBy(n => n.Id).ToListAsync();
+        else
+            return await db.TextElements.Where(n => n.Section == section && n.Name.Contains(filterTerm)).OrderBy(n => n.Name).ThenBy(n => n.Id).ToListAsync();
     }
     
     // Load one text element by id: