Update unicodesymbols test to include Capital Schwa.

autotests/export/latex/unicodesymbols/001-4-latin.lyx

@@ -1,5 +1,5 @@
 #LyX 2.4 created this file. For more info see https://www.lyx.org/
-\lyxformat 566
+\lyxformat 578
 \begin_document
 \begin_header
 \save_transient_properties true
@@ -58,6 +58,7 @@
 \justification true
 \use_refstyle 0
 \use_minted 0
+\use_lineno 0
 \branch na
 \selected 0
 \filename_suffix 0
@@ -78,6 +79,7 @@
 \papercolumns 1
 \papersides 1
 \paperpagestyle default
+\tablestyle default
 \tracking_changes false
 \output_changes false
 \html_math_output 0
@@ -301,15 +303,15 @@ status collapsed
 ƈ 
 \begin_inset Branch na
 inverted 0
-status collapsed
+status open
 
 \begin_layout Standard
-Ɖ Ɗ Ƌ ƌ ƍ Ǝ Ə
+Ɖ Ɗ Ƌ ƌ ƍ Ǝ 
 \end_layout
 
 \end_inset
 
-
+ Ə
 \end_layout
 
 \begin_layout Labeling