fix: correct CSP header

netlify.toml

···
     X-XSS-Protection = "1; mode=block"
     X-Content-Type-Options = "nosniff"
     X-Clacks-Overhead = "GNU Terry Pratchett"
-    Content-Security-Policy = "default-src 'self'; script-src 'self' https://plausible.io; connect-src https://plausible.io; img-src https:"
+    Content-Security-Policy = "default-src 'self'; script-src 'self'; connect-src 'self'; img-src https:"
     Permissions-Policy = "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=(), clipboard-read=(), clipboard-write=(), gamepad=(), speaker-selection=()"
     Referrer-Policy = "no-referrer-when-downgrade"