fix: use canvas measureText to calculate width in measureText (#6030)

* fix: use canvas measureText to calculate width in measureText

* calculate multiline width correctly using canvas measure text and rename functions

* set correct width when pasting in bound container

* take existing value + new pasted

* remove debugger :p

* fix snaps

src/tests/data/__snapshots__/restore.test.ts.snap

@@ -312,7 +312,7 @@ Object {
   "versionNonce": 0,
   "verticalAlign": "middle",
   "width": 100,
-  "x": 0.5,
+  "x": 0,
   "y": 0,
 }
 `;

src/tests/linearElementEditor.test.tsx

@@ -1027,7 +1027,7 @@ describe("Test Linear Elements", () => {
       expect(getBoundTextElementPosition(container, textElement))
         .toMatchInlineSnapshot(`
         Object {
-          "x": 387.5,
+          "x": 387,
           "y": 70,
         }
       `);
@@ -1086,7 +1086,7 @@ describe("Test Linear Elements", () => {
       expect(getBoundTextElementPosition(container, textElement))
         .toMatchInlineSnapshot(`
         Object {
-          "x": 190.5,
+          "x": 190,
           "y": 20,
         }
       `);