build: turn off ssr for all routes

because SSR used up 50% of invocation allowance on netlify whereas
bandwidth was at 0.5% and build minutes were at 1%

These assets should be delivered statically and only the README.md
proxy should use up these invocations

src/routes/+layout.ts

@@ -0,0 +1 @@
+export const ssr = false

src/routes/p/[npub]/+page.ts

@@ -3,5 +3,3 @@ export const load = ({ params }: { params: { npub: string } }) => {
     npub: params.npub,
   }
 }
-
-export const ssr = false

src/routes/r/[repo_naddr]/+page.ts

@@ -3,5 +3,3 @@ export const load = ({ params }: { params: { repo_naddr: string } }) => {
     repo_naddr: params.repo_naddr,
   }
 }
-
-export const ssr = false

src/routes/repo/[repo_identifier]/+page.ts

@@ -3,5 +3,3 @@ export const load = ({ params }: { params: { repo_identifier: string } }) => {
     repo_identifier: params.repo_identifier,
   }
 }
-
-export const ssr = false