feat(bandmap,dxped): drop the ctrl+wheel zoom, badge the news

ctrl+wheel is the WINDOW zoom everywhere else in OpsLog, and one gesture
that resizes the whole app over one panel and one band map over another
is a gesture nobody can trust. The + and - buttons keep the zoom, and
the footer hint stops advertising what is gone.

The DX-World headlines now carry a chase badge like the announcements —
but ENTITY-LEVEL only. A headline names no band, and asking the slot
question without one answers 'new band' for every entity ever worked:
the one mistake that costs a QSO. So the news says NEW DXCC or worked,
and the sharper verdicts stay where the bands and modes are known.

frontend/wailsjs/go/main/App.d.ts

@@ -12,7 +12,6 @@ import {award} from '../models';
 import {awardref} from '../models';
 import {bandopen} from '../models';
 import {cluster} from '../models';
-import {dxped} from '../models';
 import {extsvc} from '../models';
 import {powergenius} from '../models';
 import {pskr} from '../models';
@@ -477,7 +476,7 @@ export function GetDVKMessages():Promise<Array<main.DVKMessage>>;
 
 export function GetDVKStatus():Promise<main.DVKStatus>;
 
-export function GetDXWorldNews():Promise<Array<dxped.News>>;
+export function GetDXWorldNews():Promise<Array<main.DXNews>>;
 
 export function GetDXpeditions():Promise<Array<main.DXpedition>>;