Upping rust version, fixing min length.

docker/dev/Dockerfile

@@ -9,7 +9,7 @@ RUN yarn install --pure-lockfile
 COPY server/ui /app/ui
 RUN yarn build
 
-FROM rust:1.39 as rust
+FROM rust:1.42 as rust
 
 # Install musl
 RUN apt-get update

server/service/src/main.rs

@@ -93,7 +93,7 @@ fn search_query(
 ) -> Result<Value, Error> {
 
   let q = query.q.trim();
-  if q.is_empty() || q.len() <= 3 {
+  if q.is_empty() || q.len() < 3 {
     return Err(format_err!("{{\"error\": \"{}\"}}", "Empty query".to_string()));
   }
 

server/ui/src/components/navbar.tsx

@@ -48,7 +48,7 @@ export class Navbar extends Component<any, State> {
       <form class="col-12 col-sm-6 m-0 px-1" onSubmit={linkEvent(this, this.search)}>
         <div class="input-group w-100">
           <input class="form-control border-left-0 border-top-0 border-bottom-0 no-outline" type="search" placeholder="Search..." aria-label="Search..." required
-                minLength={4}
+                minLength={3}
                  value={this.state.searchParams.q}
                  onInput={linkEvent(this, this.searchChange)}></input>
           <div class="input-group-append">