Fix Observers icon overlapping other elements on low resolutions (bug #24455)

More specifically, horizontal resolutions less than 1024 px.

Okay, I lied. This doesn't fully fix that on master because recent font
and theme changes cause it to be misaligned even on >= 1024 px. But
hopefully someone will figure something out later.

This is a backport of a 1.12 commit.

changelog

@@ -16,6 +16,8 @@ Version 1.13.4+dev:
    * Various design improvements to GUI2 widgets
    * New simpler GUI2 loading screen
    * New colored cursor graphics
+   * Fixed Observers icon appearing behind other top bar items in MP games on
+     horizontal UI resolutions < 1024 (bug #24455).
  * WML engine:
    * Fix some issues with [foreach]
    * Fix some issues with backstab-like weapon specials

data/themes/default.cfg

@@ -618,6 +618,10 @@
             font_size={DEFAULT_FONT_TINY}
             rect="+0,=,+55,+{DEFAULT_FONT_TINY_HEIGHT}"
         [/change]
+        [change]
+            id=observers
+            rect="+265,=,+16,+{DEFAULT_FONT_SMALL_HEIGHT}"
+        [/change]
     [/partialresolution]
 
     [partialresolution]

players_changelog

@@ -8,12 +8,19 @@ Version 1.13.4+dev:
      * New sprites for Li'sar.
      * S10: Clarify objectives and change egg image on capture.
      * S19c: Removed the undead and the swamps.
+
  * Language and i18n:
    * Updated translations: British English, Galician, German, Italian, Japanese,
      Portuguese, Russian, Scottish Gaelic, Spanish.
+
+ * User interface:
+   * Fixed Observers icon appearing behind other top bar items in MP games on
+     horizontal UI resolutions < 1024 (bug #24455).
+
  * Miscellaneous and bug fixes:
    * Allow changing keybindings for scrolling the map.
 
+
 Version 1.13.4:
  * Language and i18n:
    * Updated translations: British English, Russian.