Add-on store: Minor logo styling tweaks (#2435)

Signed-off-by: Florian Hotze <florianh_dev@icloud.com>

bundles/org.openhab.ui/web/src/components/addons/addon-list-item.vue

@@ -27,7 +27,7 @@
     padding-right 3px !important
   .logo-square
     background white
-    border-radius 5px
+    border-radius 10%
     width 64px
     height 64px
     margin-left 3px

bundles/org.openhab.ui/web/src/pages/addons/addon-details.vue

@@ -102,7 +102,7 @@
       align-items center
       width 118px
       height 118px
-      border-radius 22%
+      border-radius 10%
       margin-right var(--f7-block-padding-horizontal)
       flex-shrink 0
       background white