tdf#102235 Replace Hindi with Indic and add some sample digits

Tools > Options > Language settings > Complex Text Layout > Numerals:
Choosing "Hindi" (eastern arabic) numerals is quite confusing
for Hindi language which use Devanagari numerals.
I propose to recall it "Indic"
See https://en.wikipedia.org/wiki/Eastern_Arabic_numerals
and add some sample digits

Change-Id: I97e50d6e5c4715eb3aed9701457164269d5d75da
Reviewed-on: https://gerrit.libreoffice.org/29000Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>

cui/uiconfig/ui/optctlpage.ui

@@ -232,8 +232,8 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <items>
-                      <item translatable="yes">Arabic</item>
-                      <item translatable="yes">Hindi</item>
+                      <item translatable="yes">Arabic (1, 2, 3...)</item>
+                      <item translatable="yes">Indic (٣ ,٢ ,١...)</item>
                       <item translatable="yes">System</item>
                       <item translatable="yes">Context</item>
                     </items>