[web] use a global shared mock for the metrics module (#32799)

GitOrigin-RevId: 72874ba6c06c2a602b01cc029bc9c71ce3ce8892

services/web/test/unit/src/Project/ProjectController.test.mjs

@@ -185,12 +185,6 @@ describe('ProjectController', function () {
         flushProjectToTpdsIfNeeded: sinon.stub().resolves(),
       },
     }
-    ctx.Metrics = {
-      Timer: class {
-        done() {}
-      },
-      inc: sinon.stub(),
-    }
     ctx.SplitTestHandler = {
       promises: {
         getAssignment: sinon.stub().resolves({ variant: 'default' }),
@@ -253,10 +247,6 @@ describe('ProjectController', function () {
       default: ctx.settings,
     }))
 
-    vi.doMock('@overleaf/metrics', () => ({
-      default: ctx.Metrics,
-    }))
-
     vi.doMock(
       '../../../../app/src/Features/Collaborators/CollaboratorsHandler',
       () => ({

services/web/test/unit/src/Project/ProjectDetailsHandler.test.mjs

@@ -104,8 +104,6 @@ describe('ProjectDetailsHandler', function () {
       default: ctx.settings,
     }))
 
-    vi.doMock('@overleaf/metrics', () => ({ default: {} }))
-
     ctx.handler = (await import(MODULE_PATH)).default
   })
 

services/web/test/unit/src/Project/ProjectListController.test.mjs

@@ -133,9 +133,6 @@ describe('ProjectListController', function () {
     ctx.Features = {
       hasFeature: sinon.stub(),
     }
-    ctx.Metrics = {
-      inc: sinon.stub(),
-    }
     ctx.SplitTestHandler = {
       promises: {
         getAssignment: sinon.stub().resolves({ variant: 'default' }),
@@ -208,10 +205,6 @@ describe('ProjectListController', function () {
       default: ctx.settings,
     }))
 
-    vi.doMock('@overleaf/metrics', () => ({
-      default: ctx.Metrics,
-    }))
-
     vi.doMock(
       '../../../../app/src/Features/SplitTests/SplitTestHandler',
       () => ({