🔥(github) clean useless items

Performed a minor cleanup:

The CI related to the frontend has been removed temporarily.
It will be reinstated once the frontend development is initiated by @manuhabitela.

A redundant issue template has been removed. Existing templates in
the "ISSUE_TEMPLATE" folder remain in place.

.github/ISSUE_TEMPLATE.md

@@ -1,6 +0,0 @@
-<!---
-Thanks for filing an issue 😄 ! Before you submit, please read the following:
-
-Check the other issue templates if you are trying to submit a bug report, feature request, or question
-Search open/closed issues before submitting since someone might have asked the same thing before!
--->

.github/workflows/impress-frontend.yml

@@ -1,171 +0,0 @@
-name: impress Workflow
-
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - "*"
-
-jobs:
-  install-front:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: "18.x"
-
-      - name: Restore the frontend cache
-        uses: actions/cache@v4
-        id: front-node_modules
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-      - name: Install dependencies
-        if: steps.front-node_modules.outputs.cache-hit != 'true'
-        run: cd src/frontend/ && yarn install --frozen-lockfile
-
-      - name: Cache install frontend
-        if: steps.front-node_modules.outputs.cache-hit != 'true'
-        uses: actions/cache@v4
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-  build-front:
-    runs-on: ubuntu-latest
-    needs: install-front
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Restore the frontend cache
-        uses: actions/cache@v4
-        id: front-node_modules
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-      - name: Build CI App
-        run: cd src/frontend/ && yarn ci:build
-
-      - name: Cache build frontend
-        uses: actions/cache@v4
-        with:
-          path: src/frontend/apps/impress/out/
-          key: build-front-${{ github.run_id }}
-
-  test-front:
-    runs-on: ubuntu-latest
-    needs: install-front
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Restore the frontend cache
-        uses: actions/cache@v4
-        id: front-node_modules
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-      - name: Test App
-        run: cd src/frontend/ && yarn app:test
-
-  lint-front:
-    runs-on: ubuntu-latest
-    needs: install-front
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Restore the frontend cache
-        uses: actions/cache@v4
-        id: front-node_modules
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-      - name: Check linting
-        run: cd src/frontend/ && yarn lint
-
-  test-e2e:
-    runs-on: ubuntu-latest
-    needs: build-front
-    timeout-minutes: 15
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Set services env variables
-        run: |
-          make data/media
-          make create-env-files
-          cat env.d/development/common.e2e.dist >> env.d/development/common
-
-      - name: Restore the mail templates
-        uses: actions/cache@v4
-        id: mail-templates
-        with:
-          path: "src/backend/core/templates/mail"
-          key: mail-templates-${{ hashFiles('src/mail/mjml') }}
-
-      - name: Restore the frontend cache
-        uses: actions/cache@v4
-        id: front-node_modules
-        with:
-          path: "src/frontend/**/node_modules"
-          key: front-node_modules-${{ hashFiles('src/frontend/**/yarn.lock') }}
-
-      - name: Restore the build cache
-        uses: actions/cache@v4
-        id: cache-build
-        with:
-          path: src/frontend/apps/impress/out/
-          key: build-front-${{ github.run_id }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Build the Docker images
-        uses: docker/bake-action@v4
-        with:
-          targets: |
-            app-dev
-            y-webrtc-signaling
-          load: true
-          set: |
-            *.cache-from=type=gha,scope=cached-stage
-            *.cache-to=type=gha,scope=cached-stage,mode=max
-
-      - name: Start Docker services
-        run: |
-          make run
-
-      - name: Apply DRF migrations
-        run: |
-          make migrate
-
-      - name: Add dummy data
-        run: |
-          make demo FLUSH_ARGS='--no-input'
-
-      - name: Install Playwright Browsers
-        run: cd src/frontend/apps/e2e && yarn install
-
-      - name: Run e2e tests
-        run: cd src/frontend/ && yarn e2e:test
-
-      - uses: actions/upload-artifact@v3
-        if: always()
-        with:
-          name: playwright-report
-          path: src/frontend/apps/e2e/report/
-          retention-days: 7