Fix deck options sticky bar at top disappearing on scroll

Issue was introduced in 7922f18296
when the styling was moved into base.scss. From what I can tell, there
are two locations where the current styling is required:

- the editor, to ensure the tags are shown at the bottom
- the change notetype screen, which requires this styling for a sticky
bar at top

I'm no CSS guru, so if someone thinks this could be solved in a better
way, please submit a follow-up PR.

Closes #1782

sass/base.scss

@@ -32,11 +32,6 @@ $utilities: (
     flex-basis: 75%;
 }
 
-html,
-body {
-    height: 100%;
-}
-
 * {
     overscroll-behavior: none;
 }

ts/change-notetype/change-notetype-base.scss

@@ -23,6 +23,10 @@ html {
     overflow-x: hidden;
 }
 
+html, body { 
+    height: 100%;
+}
+
 #main {
     padding: 0.5em 0.5em 1em 0.5em;
     height: 100vh;

ts/editor/editor-base.scss

@@ -12,3 +12,7 @@ $btn-disabled-opacity: 0.4;
 html {
     overflow: hidden;
 }
+
+html, body {
+    height: 100%;
+}