Refactor code to comply with ESLint rules

Major refactoring using ESLint with rules from AirBnb and Vue.

Enable most of the ESLint rules and do necessary linting in the code.
Also add more information for rules that are disabled to describe what
they are and why they are disabled.

Allow logging (`console.log`) in test files, and in development mode
(e.g. when working with `npm run serve`), but disable it when
environment is production (as pre-configured by Vue). Also add flag
(`--mode production`) in `lint:eslint` command so production linting is
executed earlier in lifecycle.

Disable rules that requires a separate work. Such as ESLint rules that
are broken in TypeScript: no-useless-constructor (eslint/eslint#14118)
and no-shadow (eslint/eslint#13014).

src/application/Parser/Script/Syntax/BatchFileSyntax.ts

@@ -1,10 +1,10 @@
 import { ILanguageSyntax } from '@/domain/ScriptCode';
 
-
-const BatchFileCommonCodeParts = [ '(', ')', 'else', '||' ];
-const PowerShellCommonCodeParts = [ '{', '}' ];
+const BatchFileCommonCodeParts = ['(', ')', 'else', '||'];
+const PowerShellCommonCodeParts = ['{', '}'];
 
 export class BatchFileSyntax implements ILanguageSyntax {
-    public readonly commentDelimiters = [ 'REM', '::' ];
-    public readonly commonCodeParts = [ ...BatchFileCommonCodeParts, ...PowerShellCommonCodeParts ];
+  public readonly commentDelimiters = ['REM', '::'];
+
+  public readonly commonCodeParts = [...BatchFileCommonCodeParts, ...PowerShellCommonCodeParts];
 }

src/application/Parser/Script/Syntax/ISyntaxFactory.ts

@@ -1,5 +1,4 @@
 import { ILanguageSyntax } from '@/domain/ScriptCode';
 import { IScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/IScriptingLanguageFactory';
 
-export interface ISyntaxFactory extends IScriptingLanguageFactory<ILanguageSyntax> {
-}
+export type ISyntaxFactory = IScriptingLanguageFactory<ILanguageSyntax>;

src/application/Parser/Script/Syntax/ShellScriptSyntax.ts

@@ -1,6 +1,7 @@
 import { ILanguageSyntax } from '@/domain/ScriptCode';
 
 export class ShellScriptSyntax implements ILanguageSyntax {
-    public readonly commentDelimiters = [ '#' ];
-    public readonly commonCodeParts = [ '(', ')', 'else', 'fi' ];
+  public readonly commentDelimiters = ['#'];
+
+  public readonly commonCodeParts = ['(', ')', 'else', 'fi'];
 }

src/application/Parser/Script/Syntax/SyntaxFactory.ts

@@ -5,10 +5,12 @@ import { BatchFileSyntax } from './BatchFileSyntax';
 import { ShellScriptSyntax } from './ShellScriptSyntax';
 import { ISyntaxFactory } from './ISyntaxFactory';
 
-export class SyntaxFactory extends ScriptingLanguageFactory<ILanguageSyntax> implements ISyntaxFactory {
-    constructor() {
-        super();
-        this.registerGetter(ScriptingLanguage.batchfile, () => new BatchFileSyntax());
-        this.registerGetter(ScriptingLanguage.shellscript, () => new ShellScriptSyntax());
-    }
+export class SyntaxFactory
+  extends ScriptingLanguageFactory<ILanguageSyntax>
+  implements ISyntaxFactory {
+  constructor() {
+    super();
+    this.registerGetter(ScriptingLanguage.batchfile, () => new BatchFileSyntax());
+    this.registerGetter(ScriptingLanguage.shellscript, () => new ShellScriptSyntax());
+  }
 }