infra: add linting and formatting for js projects (#230)

* wip

* wip

* wip

* format

* wip(mobile): lint and format

* cleanup

* nits

* nits

* idiomatic react

* nit

* format all root files

js/mobile/src/lib/particle-path.ts

@@ -20,7 +20,7 @@ export function particlePath(
   networkId: string,
   segments: string[] = [],
 ): ParticlePath {
-  return `/${[networkId, ...segments].join("/")}` as ParticlePath;
+  return `/${[networkId, ...segments].join('/')}` as ParticlePath;
 }
 
 /**
@@ -30,7 +30,7 @@ export function parseParticlePath(path: ParticlePath): {
   networkId: string;
   segments: string[];
 } {
-  const parts = path.split("/").filter(Boolean);
+  const parts = path.split('/').filter(Boolean);
   return { networkId: parts[0], segments: parts.slice(1) };
 }
 
@@ -49,9 +49,9 @@ export function toFirestoreDocPath(path: ParticlePath): string {
 
   const parts: string[] = [base, segments[0]];
   for (let i = 1; i < segments.length; i++) {
-    parts.push("children", segments[i]);
+    parts.push('children', segments[i]);
   }
-  return parts.join("/");
+  return parts.join('/');
 }
 
 /**