Update login page layout

This update will:

- Change the positioning of the form to be on the left
- Add the built on OpenBMC logo to the bottom right corner of the
screen
- Add the ability to include a GUI custom name using a .env variable.
If the variable is not present, the login page will not include the <h1>
section heading element.
- Remove the word "logo" from the alt attribute for the company logo
image used in the application header and on the login page.

Github story: https://github.com/openbmc/webui-vue/issues/63

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I83ac5aecff0b3858c3ab5f38ab1aaa603d59acf1
diff --git a/.env.ibm b/.env.ibm
index 3420462..97c2afa 100644
--- a/.env.ibm
+++ b/.env.ibm
@@ -1,6 +1,7 @@
 NODE_ENV=production
 VUE_APP_ENV_NAME=ibm
 VUE_APP_COMPANY_NAME="IBM"
+VUE_APP_GUI_NAME="BMC System Management"
 CUSTOM_STYLES=true
 CUSTOM_APP_NAV=true
 CUSTOM_ROUTER=true