docs:create .env.exmaple style(admin):change welcome back text, add tooltip for some button change, incrase navbar size

.env.example

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+# Backend
+DATABASE_URL=YOUR_DATABASE_URL
+REDIS_URL=YOUR_REDIS_URL
+BETTER_AUTH_SECRET=YOUR_BETTER_AUTH_SECRET
+SENTRY_AUTH_TOKEN=YOURT_SENTRY_AUTH_TOKEN
+
+# Channel target
+YOUTUBE_CHANNEL_ID=YOUR_YOUTUBE_CHANNEL_ID
+YOUTUBE_API_KEY=YOUR_YOUTUBE_API_KEY
+
+# Base url
+BASE_URL=YOUR_BASE_URL # example: https://buzz.sudloh.com
+
+# Discord bot (Rubgram)
+DISCORD_BOT_TOKEN=YOUR_DISCORD_BOT_TOKEN
+DISCORD_GUILD_ID=YOUR_DISCORD_GUILD_ID
+DISCORD_CLIENT_ID=YOUR_DISCORD_CLIENT_ID
+DISCORD_CLIENT_SECRET=YOUR_DISCORD_CLIENT_SECRET
+DISCORD_REDIRECT_URI=https://YOUR_BASE_URL/rubgram/callback
+
+# Discord webhook (Rubgram)
+DISCORD_WEBHOOK_URL=YOUR_DISCORD_WEBHOOK_URL # For Rubgram calling
+WEBHOOK_RUBGRAM_SUBMIT=YOUR_WEBHOOK_RUBGRAM_SUBMIT # For Rubgram submit
+
+# Payment (Rubgram) https://slipok.com/
+SLIPOK_API_URL=YOUR_SLIPOK_API_URL
+SLIPOK_API_KEY=YOUR_SLIPOK_API_KEY
+
+# Environment
+ENVIRONMENT=production