Fix the last eslint warnings

frontend/js/components/list/posters.js

@@ -98,6 +98,7 @@ const Posters = ({
   const [size, setSize] = useState(0);
   const [postersPerRow, setPostersPerRow] = useState(0);
   const [posterHeight, setPosterHeight] = useState(0);
+  const [initialLoading, setInitialLoading] = useState(true);
 
   const loadMore = useCallback(() => {
     if (size === elmts.size) {
@@ -111,8 +112,11 @@ const Posters = ({
   }, [size, elmts.size]);
 
   useEffect(() => {
-    loadMore();
+    if (initialLoading) {
-  }, [elmts.size, loadMore]);
+      loadMore();
+      setInitialLoading(false);
+    }
+  }, [loadMore, initialLoading, setInitialLoading]);
 
   const move = useCallback(
     (event) => {

frontend/js/components/users/login.js

@@ -1,5 +1,4 @@
 import React, { useState } from "react";
-import PropTypes from "prop-types";
 import { useDispatch, useSelector } from "react-redux";
 import { Redirect, Link } from "react-router-dom";
 

frontend/js/reducers/shows.js

@@ -60,8 +60,8 @@ const handlers = {
     return state.mergeIn(
       ["shows", action.payload.imdbId],
       Map({
-        tracked_season: season,
+        tracked_season: season, // eslint-disable-line camelcase
-        tracked_episode: episode,
+        tracked_episode: episode, // eslint-disable-line camelcase
       })
     );
   },