version now refreshes, fixed and renamed stuff

The version now refreshes when you update/install Northstar, I renamed
vpVersion/nsVersion to just vpversion/nsversion and
getInstalledVersion() to getNSVersion(), removed uses of
getElementById() with just the ID. I also added English localization.
The versions text color is now bound by a CSS variable (we may use it in
the future again).

I'm also not sure what the point of `style="white-space: nowrap;"` was,
as I don't see much of a difference? Rather instead use `<nobr>` in the
lang file if needed.

Besides that I did tiny code cleanup.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/app/main.css b/src/app/main.css
index c86e08d..cd6c001 100644
--- a/src/app/main.css
+++ b/src/app/main.css
@@ -1,6 +1,7 @@
 :root {
 	--background: #4C515B;
 	--foreground: #DDE2EB;
+	--subforeground: #AFAFAF;
 	--btnforeground: var(--foreground);
 }
 
@@ -72,5 +73,5 @@ button:active {
 .versions {
 	height: 15px;
 	font-size: 12px;
-	color: #afafaf;
-}
\ No newline at end of file
+	color: var(--subforeground);
+}