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/Compiler/Expressions/Pipes/PipelineCompiler.ts

@@ -2,30 +2,32 @@ import { IPipeFactory, PipeFactory } from './PipeFactory';
 import { IPipelineCompiler } from './IPipelineCompiler';
 
 export class PipelineCompiler implements IPipelineCompiler {
-    constructor(private readonly factory: IPipeFactory = new PipeFactory()) { }
-    public compile(value: string, pipeline: string): string {
-        ensureValidArguments(value, pipeline);
-        const pipeNames = extractPipeNames(pipeline);
-        const pipes = pipeNames.map((pipeName) => this.factory.get(pipeName));
-        for (const pipe of pipes) {
-            value = pipe.apply(value);
-        }
-        return value;
+  constructor(private readonly factory: IPipeFactory = new PipeFactory()) { }
+
+  public compile(value: string, pipeline: string): string {
+    ensureValidArguments(value, pipeline);
+    const pipeNames = extractPipeNames(pipeline);
+    const pipes = pipeNames.map((pipeName) => this.factory.get(pipeName));
+    let valueInCompilation = value;
+    for (const pipe of pipes) {
+      valueInCompilation = pipe.apply(valueInCompilation);
     }
+    return valueInCompilation;
+  }
 }
 
 function extractPipeNames(pipeline: string): string[] {
-    return pipeline
-        .trim()
-        .split('|')
-        .slice(1)
-        .map((p) => p.trim());
+  return pipeline
+    .trim()
+    .split('|')
+    .slice(1)
+    .map((p) => p.trim());
 }
 
 function ensureValidArguments(value: string, pipeline: string) {
-    if (!value) { throw new Error('undefined value'); }
-    if (!pipeline) { throw new Error('undefined pipeline'); }
-    if (!pipeline.trimStart().startsWith('|')) {
-        throw new Error('pipeline does not start with pipe');
-    }
+  if (!value) { throw new Error('undefined value'); }
+  if (!pipeline) { throw new Error('undefined pipeline'); }
+  if (!pipeline.trimStart().startsWith('|')) {
+    throw new Error('pipeline does not start with pipe');
+  }
 }