feat: Update Signup screen (#6002)

* feat: Update Signup page designs

* feat: Update the signup page with dynamic testimonials

* Remove the images

* chore: Minor UI fixes

* chore: Form aligned to centre

* Update app/javascript/dashboard/routes/auth/components/Signup/Form.vue

* Design improvements

* Update company name key

* Revert "chore: Minor UI fixes"

This reverts commit 1556f4ca835d9aa0d9620fd6a3d52d259f0d7d65.

* Revert "Design improvements

This reverts commit dfb2364cf2f0cc93123698fde92e5f9e00536cc2.

* Remove footer

* Fix spacing

* Update app/views/installation/onboarding/index.html.erb

Co-authored-by: iamsivin <iamsivin@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: Nithin David Thomas <1277421+nithindavid@users.noreply.github.com>

public/assets/images/auth/bottom-right.svg

@@ -0,0 +1,3 @@
+<svg width="800" height="800" viewBox="0 0 800 800" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M800 0H600V200H400V400H200V600H0V800H200H400H600H800V600V400V200V0Z" fill="#2773E4" fill-opacity="0.42"/>
+</svg>

public/assets/images/auth/top-left.svg

@@ -0,0 +1,3 @@
+<svg width="600" height="600" viewBox="0 0 600 600" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M200 0H0V200V400V600H200V400H400V200H600V0H400H200Z" fill="#2773E4" fill-opacity="0.42"/>
+</svg>