FontEditor: Add Klingon phrase to Preview Font

Author: https://github.com/Xexxa
Commit: https://github.com/SerenityOS/serenity/commit/10a52c0b321
Pull-request: https://github.com/SerenityOS/serenity/pull/11842
Reviewed-by: https://github.com/kleinesfilmroellchen ✅

Userland/Applications/FontEditor/FontEditor.cpp

@@ -42,7 +42,7 @@
 #include <LibUnicode/CharacterTypes.h>
 #include <stdlib.h>
 
-static constexpr int s_pangram_count = 7;
+static constexpr int s_pangram_count = 8;
 static char const* pangrams[s_pangram_count] = {
     "quick fox jumps nightly above wizard",
     "five quacking zephyrs jolt my wax bed",
@@ -50,7 +50,8 @@ static char const* pangrams[s_pangram_count] = {
     "quick brown fox jumps over the lazy dog",
     "waxy and quivering jocks fumble the pizza",
     "~#:[@_1%]*{$2.3}/4^(5'6\")-&|7+8!=<9,0\\>?;",
-    "byxfjärmat föl gick på duvshowen"
+    "byxfjärmat föl gick på duvshowen",
+    "         "
 };
 
 static RefPtr<GUI::Window> create_font_preview_window(FontEditorWidget& editor)