Asset dependency clean up

## remove webpack-jquery-ui, add jquery

When I originally switched to webpacker, I needed to add jquery which
is a supporting library for my custom jquery-ui build which lets me
drag and drop to sort items on the backend. The webpack one adds tons
of depencencies, where as jquery is just one.

## remove normalize.css

I wasn't able to get normalize.css imported from the node modules, but
I also removed it and it didn't seem to break anything. So I'm going to
keep it removed, as well as remove the `normalize-rails` gem.

## remove esbuild-sass-plugin

Finally, I was able to remove the `esbuild-sass-plugin` node module
since I'm not using esbuild to bundle sass anymore.

Gemfile

@@ -12,7 +12,6 @@ gem "image_processing"
 gem "jbuilder"
 gem "jsbundling-rails"
 gem "kaminari"
-gem "normalize-rails"
 gem "oath"
 gem "pg"
 gem "puma"

Gemfile.lock

@@ -207,7 +207,6 @@ GEM
       racc (~> 1.4)
     nokogiri (1.13.7-x86_64-linux)
       racc (~> 1.4)
-    normalize-rails (8.0.1)
     oath (1.1.0)
       bcrypt
       rails
@@ -381,7 +380,6 @@ DEPENDENCIES
   jsbundling-rails
   kaminari
   launchy
-  normalize-rails
   oath
   pg
   pry-byebug

app/assets/stylesheets/admin/admin.scss

@@ -3,7 +3,6 @@
 @use "sass:math";
 
 @import "../reset";
-@import "normalize.css";
 @import "variables";
 
 @import "base";

package.json

@@ -4,10 +4,8 @@
     "@rails/activestorage": "^6.0.3-3",
     "@rails/ujs": "^6.0.3-3",
     "esbuild": "^0.14.28",
-    "esbuild-sass-plugin": "^2.2.5",
-    "normalize.css": "^8.0.1",
-    "sass": "^1.54.3",
-    "webpack-jquery-ui": "^2.0.1"
+    "jquery": "^3.6.1",
+    "sass": "^1.54.3"
   },
   "devDependencies": {},
   "scripts": {