Translations and i18n (#60)

* Managing i18n

* Fix absolute path

* Config files

* Home link manage langage

* Fixing footer i18n

* Implemented i18n on newsletter

* Implemented two languages in example

* Removed old section directory

* Using yaml in data to organize home summary

* Fully working for old versions without i18n

* Integrating language menu CSS

* Fix language dropdown CSS

* Refactor translation codes

* Remove duplicate code

* Fix URL issues

* Move customMenus and other site related config into data section

* Fix error during language toggle

* Only show the available translation for the posts

* Handle navbar brand URL properly

* Fix responsiveness

Co-authored-by: Hugo MARTIN <hugo.martin.69@gmail.com>
Co-authored-by: hossainemruz <emruz@appscode.com>

exampleSite/data/sections/about.yaml

@@ -1,76 +0,0 @@
-# section information
-section:
-  name: About
-  enable: true
-  weight: 1
-  showOnNavbar: true
-
-# your designation
-designation: Software Engineer
-# your company information
-company:
-  name: Example Co.
-  url: "https://www.example.com"
-
-# your resume. this file path should be relative to you "static" directory
-resume: "files/resume.pdf"
-
-# a summary about you
-summary: 'I am a passionate software engineer with x years of working experience. I built OSS tools for [Kubernetes](https://kubernetes.io/) using GO. My tools help people to deploy their workloads in Kubernetes. Sometimes, I work on some fun projects such as writing a theme, etc.'
-
-# your social links
-# give as many as you want. use font-awesome for the icons.
-socialLinks:
-- name: Email
-  icon: "fas fa-envelope"
-  url: "example@gmail.com"
-
-- name: Github
-  icon: "fab fa-github"
-  url: "https://www.github.com/example"
-
-- name: Stackoverflow
-  icon: "fab fa-stack-overflow"
-  url: "#"
-
-- name: LinkedIn
-  icon: "fab fa-linkedin"
-  url: "#"
-
-- name: Twitter
-  icon: "fab fa-twitter"
-  url: "#"
-
-- name: Facebook
-  icon: "fab fa-facebook"
-  url: "#"
-
-# your soft skills
-# give the percentage between 50 to 100 with 5 intervals.
-# currently supported colors: blue, yellow, pink, green, sky, orange
-softSkills:
-- name: Leadership
-  percentage: 85
-  color: blue
-- name: Team Work
-  percentage: 90
-  color: yellow
-- name: Communication
-  percentage: 85
-  color: pink
-- name: Hard Working
-  percentage: 85
-  color: green
-- name: Fast Learner
-  percentage: 85
-  color: sky
-- name: Problem Solving
-  percentage: 85
-  color: orange
-# you can also provide color code instead of pre-defined color name
-# - name: Example 1
-#   percentage: 75
-#   color: "#00adb5"
-# - name: Example 2
-#   percentage: 65
-#   color: "#8b8383"