Refactoring Document storage (#5)

- Major refactoring that makes Doc a class with properties
- Data made only shallow reactive, for a good speedup of initial load
- Minor bugfixes and UX improvements along the way
- Fixed handling of hash and question marks in URLs (was confusing Vue Router)
- Search made stricter to find good results (not ignore all punctuation)

Reviewed-on: #5

frontend/src/utils/index.ts

@@ -86,7 +86,7 @@ export function haystackFormat(str: string) {
 // Preformat search string for faster search
 export function needleFormat(query: string) {
   const based = query.normalize('NFKD').replace(/[\u0300-\u036f]/g, '').toLowerCase()
-  return {based, words: based.split(/\W+/)}
+  return {based, words: based.split(/\s+/)}
 }
 
 // Test if haystack includes needle