fix: prevent content overflow on right side of screen

Fixes #23

- Added overflow-x-hidden to body in root layout as defensive measure
- Changed table containers from overflow-hidden to overflow-x-auto
  in admin/players page and RankingsClient (3 tables)
- Added min-w-0 and overflow-hidden to Navigation flex containers
  to prevent links from pushing content off screen
- Added flex-shrink-0 to EuchreCamp wordmark link

src/app/rankings/RankingsClient.tsx

@@ -59,7 +59,7 @@ export default function RankingsClient({ players }: { players: PlayerWithRatings
 
       {/* Elo Rating Tab */}
       {activeTab === "elo" && (
-        <div className="bg-white shadow overflow-hidden sm:rounded-lg">
+        <div className="bg-white shadow overflow-x-auto sm:rounded-lg">
           <h2 className="text-xl font-semibold text-gray-900 px-6 py-4 border-b">
             Elo Rating Rankings
           </h2>
@@ -117,7 +117,7 @@ export default function RankingsClient({ players }: { players: PlayerWithRatings
 
       {/* OpenSkill Rating Tab */}
       {activeTab === "openskill" && (
-        <div className="bg-white shadow overflow-hidden sm:rounded-lg">
+        <div className="bg-white shadow overflow-x-auto sm:rounded-lg">
           <h2 className="text-xl font-semibold text-gray-900 px-6 py-4 border-b">
             OpenSkill Rating Rankings
           </h2>
@@ -178,7 +178,7 @@ export default function RankingsClient({ players }: { players: PlayerWithRatings
 
       {/* Glicko2 Rating Tab */}
       {activeTab === "glicko2" && (
-        <div className="bg-white shadow overflow-hidden sm:rounded-lg">
+        <div className="bg-white shadow overflow-x-auto sm:rounded-lg">
           <h2 className="text-xl font-semibold text-gray-900 px-6 py-4 border-b">
             Glicko2 Rating Rankings
           </h2>