manjaro: stretch the icon to have less padding and more spacing

Having 3pt gap instead of only 2 improves crisp rendering at 16pt and
32pt icon sizes.

apps/scalable/distributor-logo-manjaro.svg

@@ -1,24 +1,24 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?><!-- Generator: Gravit.io --><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="isolation:isolate" viewBox="0 0 48 48" width="48pt" height="48pt"><linearGradient id="grad" x1="20" y1="12" x2="19" y2="50" gradientUnits="userSpaceOnUse"><stop offset="0%" stop-color="#43e97b"/><stop offset="98%" stop-color="#38f9d7"/></linearGradient><path d="
-M 4 43
+M 2 44
 c 0 1.108 0.892 2 2 2
-    H 16
-    V 17
+    H 15
+    V 15
     H 30
-    V 4
-    H 6
+    V 2
+    H 4
 c -1.108 0 -2 0.892 -2 2
 Z
 
-M 32 4
-    V 45
-    H 42
+M 33 2
+    V 46
+    H 44
 c 1.108 0 2 -0.892 2 -2
-    V 6
+    V 4
 c 0 -1.108 -0.892 -2 -2 -2
 Z
 
 M 18 18
-    V 45
+    V 46
     H 30
     V 18
 Z