Improve manual execution instructions

- Simplify alternatives to run the script.
- Change style of code parts to be easier to the eye:
  - Use the same font size as other texts in body.
  - Add vertical padding.
  - Align the contents (the code, copy button and dollar sign) in the
    middle.
  - Align information icon to center of context next to it.
- Fix minor typos and punctations.
- Refactor instruction list to be more generic to able to be used by
  other operating systems.
- Make dialogs scrollable so instruction list on smaller screens can be
  read until the end.

tests/unit/presentation/components/Code/CodeButtons/Instructions/Data/InstructionsBuilder.spec.ts

@@ -0,0 +1,103 @@
+import 'mocha';
+import { expect } from 'chai';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { IInstructionsBuilderData, InstructionsBuilder, InstructionStepBuilderType } from '@/presentation/components/Code/CodeButtons/Instructions/Data/InstructionsBuilder';
+import { itEachAbsentObjectValue } from '@tests/unit/shared/TestCases/AbsentTests';
+import { IInstructionInfo, IInstructionListStep } from '@/presentation/components/Code/CodeButtons/Instructions/InstructionListData';
+
+describe('InstructionsBuilder', () => {
+  describe('withStep', () => {
+    describe('throws when step is missing', () => {
+      itEachAbsentObjectValue((absentValue) => {
+        // arrange
+        const expectedError = 'missing stepBuilder';
+        const data = absentValue;
+        const sut = new InstructionsBuilder(OperatingSystem.Linux);
+        // act
+        const act = () => sut.withStep(data);
+        // assert
+        expect(act).to.throw(expectedError);
+      });
+    });
+  });
+  describe('build', () => {
+    it('builds with given data', () => {
+      // arrange
+      const expectedData = createMockData();
+      const actualData = Array<IInstructionsBuilderData>();
+      const builder = new InstructionsBuilder(OperatingSystem.Android);
+      const steps: readonly InstructionStepBuilderType[] = [createMockStep(), createMockStep()]
+        .map((step) => (data) => {
+          actualData.push(data);
+          return step;
+        });
+      for (const step of steps) {
+        builder.withStep(step);
+      }
+      // act
+      builder.build(expectedData);
+      // assert
+      expect(actualData.every((data) => data === expectedData));
+    });
+    it('builds with every step', () => {
+      // arrange
+      const expectedSteps = [
+        createMockStep('first'),
+        createMockStep('second'),
+        createMockStep('third'),
+      ];
+      const builder = new InstructionsBuilder(OperatingSystem.Android);
+      const steps: readonly InstructionStepBuilderType[] = expectedSteps.map((step) => () => step);
+      for (const step of steps) {
+        builder.withStep(step);
+      }
+      // act
+      const data = builder.build(createMockData());
+      // assert
+      const actualSteps = data.steps;
+      expect(actualSteps).to.have.members(expectedSteps);
+    });
+    it('builds with expected OS', () => {
+      // arrange
+      const expected = OperatingSystem.Linux;
+      const sut = new InstructionsBuilder(expected);
+      // act
+      const actual = sut.build(createMockData()).operatingSystem;
+      // assert
+      expect(true);
+      expect(actual).to.equal(expected);
+    });
+    describe('throws when data is missing', () => {
+      itEachAbsentObjectValue((absentValue) => {
+        // arrange
+        const expectedError = 'missing data';
+        const data = absentValue;
+        const sut = new InstructionsBuilder(OperatingSystem.Linux);
+        // act
+        const act = () => sut.build(data);
+        // assert
+        expect(act).to.throw(expectedError);
+      });
+    });
+  });
+});
+
+function createMockData(): IInstructionsBuilderData {
+  return {
+    fileName: 'instructions-file',
+  };
+}
+
+function createMockStep(identifier = 'mock step'): IInstructionListStep {
+  return {
+    action: createMockInfo(`${identifier} | action`),
+    code: createMockInfo(`${identifier} | code`),
+  };
+}
+
+function createMockInfo(identifier = 'mock info'): IInstructionInfo {
+  return {
+    instruction: `${identifier} | mock instruction`,
+    details: `${identifier} | mock details`,
+  };
+}