Add and apply RSpec/BeEq rubocop rule

This rule was added in rubocop-rspec 2.9.0. Once again, we were applying
it about 50% of the time.

spec/helpers/application_helper_spec.rb

@@ -5,21 +5,21 @@ describe ApplicationHelper do
     it "is true if user is the author" do
       user = create(:user)
       proposal = create(:proposal, author: user)
-      expect(author_of?(proposal, user)).to eq true
+      expect(author_of?(proposal, user)).to be true
     end
 
     it "is false if user is not the author" do
       user = create(:user)
       proposal = create(:proposal)
-      expect(author_of?(proposal, user)).to eq false
+      expect(author_of?(proposal, user)).to be false
     end
 
     it "is false if user or authorable is nil" do
       user = create(:user)
       proposal = create(:proposal)
 
-      expect(author_of?(nil, user)).to eq false
-      expect(author_of?(proposal, nil)).to eq false
+      expect(author_of?(nil, user)).to be false
+      expect(author_of?(proposal, nil)).to be false
     end
   end
 end

spec/helpers/legislation_helper_spec.rb

@@ -10,22 +10,22 @@ describe LegislationHelper do
   describe "banner colors presence" do
     it "background and font color exist" do
       @process = build(:legislation_process, background_color: "#944949", font_color: "#ffffff")
-      expect(banner_color?).to eq(true)
+      expect(banner_color?).to be true
     end
 
     it "background color exist and font color not exist" do
       @process = build(:legislation_process, background_color: "#944949", font_color: "")
-      expect(banner_color?).to eq(false)
+      expect(banner_color?).to be false
     end
 
     it "background color not exist and font color exist" do
       @process = build(:legislation_process, background_color: "", font_color: "#944949")
-      expect(banner_color?).to eq(false)
+      expect(banner_color?).to be false
     end
 
     it "background and font color not exist" do
       @process = build(:legislation_process, background_color: "", font_color: "")
-      expect(banner_color?).to eq(false)
+      expect(banner_color?).to be false
     end
   end
 end

spec/helpers/settings_helper_spec.rb

@@ -8,7 +8,7 @@ RSpec.describe SettingsHelper, type: :helper do
 
       expect(setting["key1"]).to eq("value1")
       expect(setting["key2"]).to eq("value2")
-      expect(setting["key3"]).to eq(nil)
+      expect(setting["key3"]).to be nil
     end
   end
 
@@ -19,9 +19,9 @@ RSpec.describe SettingsHelper, type: :helper do
       Setting["feature.f3"] = nil
 
       expect(feature?("f1")).to eq("active")
-      expect(feature?("f2")).to eq(nil)
-      expect(feature?("f3")).to eq(nil)
-      expect(feature?("f4")).to eq(nil)
+      expect(feature?("f2")).to be nil
+      expect(feature?("f3")).to be nil
+      expect(feature?("f4")).to be nil
     end
   end