test: review and fix test accuracy

Author: dkarter

test/bullets_spec.lua

@@ -4,6 +4,7 @@ describe("Bullets.vim", function()
 	describe("inserting new bullets", function()
 		before_each(function()
 			helpers.reset_config()
+			vim.o.ignorecase = false
 		end)
 
 		describe("on return key when cursor is not at EOL", function()

test/checkboxes_spec.lua

@@ -95,7 +95,7 @@ describe("checkboxes", function()
 				"  - [ ] second bullet",
 				"    - [ ] third bullet",
 			})
-			helpers.feedkeys("j")
+			helpers.feedkeys("ggj")
 			vim.cmd("ToggleCheckbox")
 			assert.are.same({
 				"# Hello there",