Tweaks for scrolling

* Make cm-scroller scroll by default
* Remove scrollPastEnd extension. Anyone can add it, but harder to remove if you don't want it

index.html

@@ -34,7 +34,7 @@
 
       #editor {
         flex: 1;
-        overflow: auto;
+        overflow: hidden;
       }
     </style>
   </head>

src/extensions/baseTheme.ts

@@ -4,11 +4,8 @@ export default EditorView.baseTheme({
   "&": {
     height: '100%',
   },
-  ".cm-editor": {
-    height: '100%',
-    overflow: 'auto'
-  },
   ".cm-scroller": {
-    flex: '1'
+    flex: '1',
+    overflow: 'auto',
   }
 })

src/extensions/index.ts

@@ -4,7 +4,7 @@ import { defaultKeymap, history, historyKeymap } from '@codemirror/commands'
 import { bracketMatching } from '@codemirror/language'
 import { lintKeymap } from '@codemirror/lint'
 import { highlightSelectionMatches, searchKeymap } from '@codemirror/search'
-import { drawSelection, highlightActiveLine, highlightActiveLineGutter, highlightSpecialChars, scrollPastEnd, keymap, lineNumbers } from '@codemirror/view'
+import { drawSelection, highlightActiveLine, highlightActiveLineGutter, highlightSpecialChars, keymap, lineNumbers } from '@codemirror/view'
 import { ChordPro } from '@chordbook/codemirror-lang-chordpro'
 import { oneDark } from '@codemirror/theme-one-dark'
 import baseTheme from './baseTheme'
@@ -44,6 +44,5 @@ export default [
         return false
       },
     },
-  ]),
-  scrollPastEnd(),
+  ])
 ]