[Glitch] Refactor styles to use logical properties for positioning (#2156)

Port babd86e594 and 45848d6547 to glitch-soc

Signed-off-by: Plastikmensch <plastikmensch@users.noreply.github.com>

app/javascript/flavours/glitch/styles/components/announcements.scss

@@ -84,13 +84,13 @@
       display: block;
       font-weight: 500;
       margin-bottom: 10px;
-      padding-right: 18px;
+      padding-inline-end: 18px;
     }
 
     &__unread {
       position: absolute;
       top: 19px;
-      right: 19px;
+      inset-inline-end: 19px;
       display: block;
       background: $highlight-text-color;
       border-radius: 50%;
@@ -104,7 +104,7 @@
     color: $darker-text-color;
     position: absolute;
     bottom: 3px;
-    right: 0;
+    inset-inline-end: 0;
   }
 }
 
@@ -121,7 +121,7 @@
   flex-wrap: wrap;
   align-items: center;
   margin-top: 15px;
-  margin-left: -2px;
+  margin-inline-start: -2px;
   width: calc(100% - (90px - 33px));
 
   &__item {
@@ -162,7 +162,7 @@
       font-size: 13px;
       font-weight: 500;
       text-align: center;
-      margin-left: 6px;
+      margin-inline-start: 6px;
       color: $darker-text-color;
     }