Use short labels for terminal panel actions

Fixes #8319

src/vs/workbench/parts/terminal/electron-browser/terminalActions.ts

@@ -30,6 +30,7 @@ export class KillTerminalAction extends Action {
 
 	public static ID = 'workbench.action.terminal.kill';
 	public static LABEL = nls.localize('workbench.action.terminal.kill', "Terminal: Kill the Active Terminal Instance");
+	public static PANEL_LABEL = nls.localize('workbench.action.terminal.kill.short', "Kill Terminal");
 
 	constructor(
 		id: string, label: string,
@@ -48,6 +49,7 @@ export class CreateNewTerminalAction extends Action {
 
 	public static ID = 'workbench.action.terminal.new';
 	public static LABEL = nls.localize('workbench.action.terminal.new', "Terminal: Create New Integrated Terminal");
+	public static PANEL_LABEL = nls.localize('workbench.action.terminal.new.short', "New Terminal");
 
 	constructor(
 		id: string, label: string,

src/vs/workbench/parts/terminal/electron-browser/terminalPanel.ts

@@ -57,8 +57,8 @@ export class TerminalPanel extends Panel {
 		if (!this.actions) {
 			this.actions = [
 				this.instantiationService.createInstance(SwitchTerminalInstanceAction, SwitchTerminalInstanceAction.ID, SwitchTerminalInstanceAction.LABEL),
-				this.instantiationService.createInstance(CreateNewTerminalAction, CreateNewTerminalAction.ID, CreateNewTerminalAction.LABEL),
-				this.instantiationService.createInstance(KillTerminalAction, KillTerminalAction.ID, KillTerminalAction.LABEL)
+				this.instantiationService.createInstance(CreateNewTerminalAction, CreateNewTerminalAction.ID, CreateNewTerminalAction.PANEL_LABEL),
+				this.instantiationService.createInstance(KillTerminalAction, KillTerminalAction.ID, KillTerminalAction.PANEL_LABEL)
 			];
 
 			this.actions.forEach(a => {