Upgrade web-console

Huh, error pages weren't actually working on this older version of web-console, but now they are!

Solution found here: https://discuss.rubyonrails.org/t/question-dev-mode-500-errors-not-displayed-config-consider-all-requests-local-not-honored/78453/7

Gemfile

@@ -54,7 +54,7 @@ gem "letter_opener", :group => :development
 gem "parallel", "~> 1.13.0"
 
 # For debugging.
-gem 'web-console', '~> 2.2', '>= 2.2.1'
+gem 'web-console', '~> 3.7'
 
 # TODO: Rails requests the latest version of these dependencies, but they
 # require Ruby 2.5 or higher, so we have to request lower ones instead!

Gemfile.lock

@@ -55,8 +55,7 @@ GEM
       babel-source (>= 4.0, < 6)
       execjs (~> 2.0)
     bcrypt (3.1.19)
-    binding_of_caller (1.0.0)
+    bindex (0.8.1)
-      debug_inspector (>= 0.0.1)
     bootsnap (1.12.0)
       msgpack (~> 1.2)
     builder (3.2.4)
@@ -86,7 +85,6 @@ GEM
     concurrent-ruby (1.2.2)
     connection_pool (2.2.5)
     crass (1.0.6)
-    debug_inspector (1.1.0)
     devise (4.9.2)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -247,11 +245,11 @@ GEM
       execjs (>= 0.3.0, < 3)
     warden (1.2.7)
       rack (>= 1.0)
-    web-console (2.3.0)
+    web-console (3.7.0)
-      activemodel (>= 4.0)
+      actionview (>= 5.0)
-      binding_of_caller (>= 0.7.2)
+      activemodel (>= 5.0)
-      railties (>= 4.0)
+      bindex (>= 0.4.0)
-      sprockets-rails (>= 2.0, < 4.0)
+      railties (>= 5.0)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -293,7 +291,7 @@ DEPENDENCIES
   sanitize (~> 2.0.3)
   sass-rails (~> 5.0, >= 5.0.7)
   uglifier (~> 4.2)
-  web-console (~> 2.2, >= 2.2.1)
+  web-console (~> 3.7)
   will_paginate (~> 4.0)
 
 RUBY VERSION