Fixes #26385 - Expand the gemspec

This removes two warnings on gem build. It applies a similar fix to
package.json.

katello.gemspec

@@ -7,11 +7,12 @@ require "katello/version"
 Gem::Specification.new do |gem|
   gem.name        = "katello"
   gem.version     = Katello::VERSION
+  gem.license     = 'GPL-2.0'
   gem.authors     = ["N/A"]
   gem.email       = ["katello-devel@redhat.com"]
   gem.homepage    = "http://www.katello.org"
-  gem.summary     = ""
-  gem.description = "Content and Subscription Management plugin for Foreman"
+  gem.summary     = "Content and Subscription Management plugin for Foreman"
+  gem.description = "Katello adds Content and Subscription Management to Foreman. For this it relies on Candlepin and Pulp."
 
   gem.files = Dir["{app,webpack,vendor,lib,db,ca,config,locale}/**/*"] +
     ['LICENSE.txt', 'README.md', 'package.json']

package.json

@@ -1,6 +1,7 @@
 {
   "name": "katello",
   "version": "1.0.0",
+  "license": "GPL-2.0",
   "scripts": {
     "storybook": "start-storybook -p 6007",
     "storybook:deploy": "storybook-to-ghpages",
@@ -19,7 +20,7 @@
     "url": "git+https://github.com/katello/katello.git"
   },
   "bugs": {
-    "url": "http://projects.theforeman.org/projects/katello/issues"
+    "url": "https://projects.theforeman.org/projects/katello/issues"
   },
   "devDependencies": {
     "@storybook/react": "^3.2.17",