Increase default text size from 12.5 to 13.0 (#7521)

crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.00.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:89326fda609fdd4b6ce6aa5cd0881d2a720ee498c7283670085fb4116738117d
-size 619548
+oid sha256:69442b230ab0eb5291b47290c6ec08eff21bb2032f164592b1b0205065a8b035
+size 621404

crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.25.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:fde14e4bb03251a7ff4ba508e3c78eb33204781dc67dec440f93a146d74f6691
-size 813974
+oid sha256:d38bfa32246e60a408495101004c7346220e43e430440aba82737131206e5053
+size 826006

crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.50.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d5c95515a85e1bb827ff5507843c30d39864fdf0578890ce788889578ae65724
-size 992333
+oid sha256:2fc6621f8a548991b198db4e1510f2aab04716c814fd5d7c4642c354dfb060f3
+size 1039325

crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.67.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:53423e41be4856056639d14aca6695966465d8ed0379a97deeb101aa41ff560b
-size 1129280
+oid sha256:0f541e682b229cefc00220c07bb8fd929de98041403e3cfdbc1f45000fa96e32
+size 1209860

crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.75.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:56ec1367a030b816a01b5580f454d1a2138cc4dc1fd2534526743b33fd4d1be9
-size 1239055
+oid sha256:f3c9ede7cf36cb5704f80ac4544953db22c84c6b69b24d94c072f7d35ee79698
+size 1236290

crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_2.00.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3d9ab25243e4850888e43b268801963d8fafb68aa27e0a7cfc1f4b563c8326e8
-size 1410062
+oid sha256:c36f92a5ced3be65e7b9b6364670f1f50702fcc330a0fab794d20efbc6367148
+size 1466940