Related tdf#49895: Mark strings as translatable

...and add context strings

Change-Id: I2531fc9e24db7e99b440b8042b8a502a2faaa2b4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/159567
Tested-by: Jenkins
Reviewed-by: Taichi Haradaguchi <20001722@ymail.ne.jp>
diff --git a/cui/uiconfig/ui/optionsdialog.ui b/cui/uiconfig/ui/optionsdialog.ui
index 06fe416..d1c1984 100644
--- a/cui/uiconfig/ui/optionsdialog.ui
+++ b/cui/uiconfig/ui/optionsdialog.ui
@@ -149,10 +149,10 @@
                    <property name="can-focus">True</property>
                    <property name="valign">start</property>
                    <property name="truncate-multiline">True</property>
                    <property name="placeholder-text">Type to search</property>
                    <property name="placeholder-text" translatable="yes" context="optionsdialog|searchEntry">Type to search</property>
                    <child internal-child="accessible">
                      <object class="AtkObject" id="searchEntry-atkobject">
                        <property name="AtkObject::accessible-description">Type here to search in the list of options.</property>
                        <property name="AtkObject::accessible-description" translatable="yes" context="optionsdialog|extended_tip|searchEntry">Type here to search in the list of options.</property>
                      </object>
                    </child>
                  </object>