0.4 News and fix

- Added politics system. Politics increase or decrease relations with others empire if not compatible.

- Fixed that Activity window scroll to bottom when refresh datas (not anymore)

- Added relation based on actions: Relation cab also be increased/decreased when attacking or helping on attack.

- Fleets are now colored based on relations

- Improved planet UI with background planet image

- Improved Research UI

- Fixe UI planet issue on mobile

- Fixe fleet not load correctly when first load system on game start (fleet are keep on the sun)

- Added btn 'Follow" on Fleet window (for owned fleets)

- Added planet count in My planets window

- Added fleet count / limit in My fleets window

- Added missing translations

- Fixed can't use input for changing system

- Chat do not scroll to bottom if you wan't to go up

- Added loader on loading system

- Added players count on homepage

- Fixe: AI need to apply fleet position status (attack or defend)

- Fixe on combat logic

- Change on equilibration

- Increased travel time x2 inter-planet

- Fixe security issues on actions logic

- Improvement: You can now upgrade or downgrade building without closing and reopening the Planet window

- Added limit fleet size (max 100)

- Fixe on relations logic

- Change: AI chance to attack neutral : 25% to => 15%

- Fixe when changing system, fleet of the old system are teleported

- Added button on Star's UI to move fleet here

Thancks for playing S-U !