Make settings shortcut
Remove CloseEvent override
Simplify header usage
Split searches in classes
See details:

 * Rename index to indexservice
 * Make all searches private implemetation of indexservice
Rename applicationindex to appindex
Clean headers
Add search settings for bookmark and app index
Implement the fuzzy search with qgrams
Serialize searchtypes of bookmark and appindex
Add a timer for performance monitoring
Details:

 * [BUG] exclude deserializing
 * Add timer for querytiming monotoring
 * Use stable sort for atime sorting
Implement a propoer fuzzy search
Fix icon bug
Smaller margins for the ui
Add a german flag skin
Reemploy serialiazation. Bug not reproducable
Move compare structs to item.
Add ui stubs
Add functions to the buttons