[Build] Add repository workflows

[xames3]

• this issue deals with adding GitHub Actions workflows to the project. below would be ideal deliverables for completion of these tasks:

  • to have an action workflow for uploading/publishing artifacts and deploy static site to GitHub Pages. this can be done using the deploy-pages action.
  • to have an action workflow for assigning proper labels to the issues, pull requests, etc. this action should ideally assign relatively straightforward or obvious labels to the opened tasks. it could be achieved using the labeler action but we still need to investigate a proper and meaningful labelling strategy.
  • need to have an action workflow for greeting first time contributors. although, not completely sure which would be an ideal action pick for this from the marketplace. need to investigate more on a better viable option.
  • workflow related to image compression or file size optimization.

note: we need to come up with a decisive plan whether to have multiple deployment workflows or fewer with all the combined features-set. this includes code linting, commits linting (might be too overkill) and concurrent deployments.

[xames3]

• added workflow for ci checks and deployment. see here 9f19f77. the code has been tested and seems deployment ready. however, some testing is advisable.