Add self hosted icons, fix some colors and style status icon

vite.config.ts

@@ -20,8 +20,8 @@ export default defineConfig(({ mode }) => {
           target: 'https://uptime.kent.pw',
           changeOrigin: true,
           rewrite: (path) => path.replace(/^\/api/, ''),
-          configure: (proxy, options) => {
-            proxy.on('proxyReq', (proxyReq, req, res) => {
+          configure: (proxy, _options) => {
+            proxy.on('proxyReq', (proxyReq, _req, _res) => {
               proxyReq.setHeader('Authorization', `Basic ${Buffer.from(':' + apiKey).toString('base64')}`)
             })
           }