[PM-17031] Create UI-common (#12831)

Extract core functionality from `libs/angular` to allow teams to depend on `libs/ui-common` instead.

Moves the following functionality to `ui-common`.
- `I18nPipe`. `libs/angular` still has an old copy but `components` depends on the new variant from `ui-common`.
- `safeProvider`, `SafeProvider` and `SafeInjectionToken`. `libs/angular`re-exports these to avoid needing to update all consumers.

libs/components/src/form-field/error-summary.component.ts

@@ -4,7 +4,7 @@ import { NgIf } from "@angular/common";
 import { Component, Input } from "@angular/core";
 import { AbstractControl, UntypedFormGroup } from "@angular/forms";
 
-import { I18nPipe } from "../shared/i18n.pipe";
+import { I18nPipe } from "@bitwarden/ui-common";
 
 @Component({
   selector: "bit-error-summary",

libs/components/src/form-field/form-field.component.ts

@@ -14,10 +14,11 @@ import {
   signal,
 } from "@angular/core";
 
+import { I18nPipe } from "@bitwarden/ui-common";
+
 import { BitHintComponent } from "../form-control/hint.component";
 import { BitLabel } from "../form-control/label.component";
 import { inputBorderClasses } from "../input/input.directive";
-import { I18nPipe } from "../shared/i18n.pipe";
 
 import { BitErrorComponent } from "./error.component";
 import { BitFormFieldControl } from "./form-field-control";