SAK-28981: preferences keyboard instructions needs space after colon

user/user-tool-prefs/tool/src/bundle/user-tool-prefs.properties

@@ -14,7 +14,7 @@ prefs_archive_sites_short=Archived Sites
 prefs_checkbox_select_message=Select {0} and move from {1}
 prefs_auto_refresh=When you save your tab preferences, the entire page will automatically refresh to update the top navigation.
 prefs_mouse_instructions=<strong>Mouse instructions:</strong> Drag and drop items with the mouse.
-prefs_keyboard_instructions=<strong>Keyboard instructions:</strong>Direction keys (arrow keys or i-j-k-m) move focus. CTRL + direction keys move the item up or down, or SHIFT + CTRL + direction keys to move between columns. 
+prefs_keyboard_instructions=<strong>Keyboard instructions:</strong> Direction keys (arrow keys or i-j-k-m) move focus. CTRL + direction keys move the item up or down, or SHIFT + CTRL + direction keys to move between columns. 
 prefs_multitples_instructions_scru=<strong>Screen Reading Software: </strong>The standard keyboard controls described above may not work correctly with assistive technology. The suggested method for move sites is to follow the "moving many" instructions listed below. The movement links will be located under the "Multiple Selection" heading that will appear below all of these instructions once at least one checkbox is selected.
 prefs_multitples_instructions_panel_title=Multiple Section Movement Controls 
 prefs_multitples_instructions=<strong>Moving many:</strong> Use the checkboxes to make a multiple selection then use the arrows in the control panel that will appear to move.