[Glitch] Remove duplicate CSS properties

Port 028ba13eb3 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/styles/about.scss

@@ -324,7 +324,6 @@ $small-breakpoint: 960px;
     font-family: $font-sans-serif, sans-serif;
     font-size: 16px;
     font-weight: 400;
-    font-size: 16px;
     line-height: 30px;
     margin-bottom: 12px;
     color: $darker-text-color;

app/javascript/flavours/glitch/styles/widgets.scss

@@ -584,7 +584,6 @@ $fluid-breakpoint: $maximum-width + 20px;
     display: block;
     font-weight: 500;
     padding: 15px;
-    overflow: hidden;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;