fix(docs): regenerate 6.1.0 snapshots with depth-aware import rewriter

The previous import-path fixer only matched two-level relative paths
(`../../src/` and `../../data/`), missing files at deeper nesting in the
section tree. After the 6.1.0 cut for developer_docs, ~50 component MDX
files at depth 3 still referenced `../../../src/components/StorybookWrapper`
(should have been `../../../../src/...`), and the components Button page
referenced `../../../superset-frontend/...` (should have been
`../../../../superset-frontend/...`). The Docusaurus production build
failed with module-not-found errors as a result.

Replace the pattern-specific regex with a depth-aware walker that
- counts the file's nesting depth within the snapshot,
- bumps any relative import whose `../` count exceeds that depth (i.e.
  the import escapes the section root and so must compensate for the
  extra `version-X.X.X/` directory the snapshot lives under),
- skips fenced code blocks so documented sample imports (e.g. Playwright
  page-object examples in developer_docs/testing/e2e-testing.md) are not
  rewritten.

Re-cut all four sections under the new fixer. yarn build now passes
locally.

docs/developer_docs_versioned_docs/version-6.1.0/api/update-a-theme.api.mdx

@@ -0,0 +1,68 @@
+---
+id: update-a-theme
+title: "Update a theme"
+description: "Update a theme"
+sidebar_label: "Update a theme"
+hide_title: true
+hide_table_of_contents: true
+api: eJzNV21v2zYQ/ivEYUATTImbrgMKFf2QBi3arkiD2NkLoiClxXPERiJZknLiCfrvw5GyLL9kWNsP2Sdb5N3xnudeeGzAcMsr9GgdpJcNSAUpGO4LSEDxCunrFhKw+LWWFgWk3taYgMsLrDikDfiFISmpPN6ghba9itLo/GstFiSSa+VRefrLjSllzr3UavTFaUVrK1vGaoPWS3T0RfvXgvvhMc5bqW6gTcAXWOF19HFrux16fDmwtKZ3lSz19PQL5p52pS9pYUJS5+j8sZGHpvZ0It7zypS44dryzHWPVp60CQh0uZWGQC9Nsw70JrPBcWe0cpGDZ0+f/gCDUgy4UXU1pQCFE+rS/98JbzeF10NA2I6GWL4lJg8EpTaCexR00vMfIr5C5/jNA0T9G6peEV5zwbo6Stl7NeelFGxVrcxYPZeCnN1GM9CNWI4eF8uF4rUvtJV/o0jZce0LVL47n/V5swPIUDEi+eVxkbzVdiqFQJWyv3TNhFZPPCv4HJlBW0nnCJHXjOc5Osd8IR2z6HRtc9wFsLcX0T1/XHSn2rOZrpVI2aTAZQqh6CEwodExpT3De0nJtY2otxEQPXv22JlnrKZQ8GmJjLLOL1L2OxVTzD60VttdOE50XYoAtbPQadNRvz52c3ivPFrFS+bQztFGFCk7VqxWeG8wp6CFRabzvLYPlNdb7nnZU5CAw7y2hJFGgS93HtLLK7rPPb+h8SB2SUdt/P4g1wLHwbU4OZRc3UAK+cX5R0ig5FMsV59dAaSQ17ZkB3+ys4sJy6Dw3qSjUalzXhba+fTF0xcvRtzI0fxoFFr36CgDlmWZYuzgHcvguGsHgemUvUZu0bKfjk9O3ozH15NPv705XVc4iTE6mCwMpmwzTCtZwZ40GdziIoOUZTDnZY0ZtE+gTXpsZwtfaDVA1y/0+GRltPXLynGZytTyPmev+mW64PboWPafSUiieIFcoHWvmg0qotcdHRmwn7sOdO31Laq20ybIr3bBzNR+poyVyu8t3T0k4b39/SEBH/icj0P+DEhYW1wFWitHPPTY+R2Xns3Q50WA/k3Am+h/hb7Qghw/u5hscpIupdhmnhDWz8tUaSIxk8DL52SlMsyUyM52tkTpJZ1TLRYp+zD+dHoYK1jOFnsNu8XFgFvW7pM0UfwyU5EWmlJ6SjYI74R0iYelvtkj0f2XQFW4cTWGWYVxFpiCBCI5NLDXFIkwxKewzmdjbluKUugasW5rS0HcGQvYPPMjbTOBcyy1qVD5rv+EHImGGmO117ku23Q0ashUmzZUE+2WtZPaeV0tTSQw51ZSm3Zdywxm6L/AGQ9DXnATEkBVV9SPuk/6CV1p3f67yeSM9XbaBMibdXs93i3nxrGx0h5Nj0xb9v6MjBCWdSM7qer0g3QbHkXL5jrOYxdNuxbbwDSk5lttK072Pvwxge6FRZUUd6G/GgLoNiHla4szi674XiNkxWl1vnquvfmeN04CUs10JGWNg9qgdTgc8wdLlIFRbn4UiXW+4uHm7Oxvpfia+f729HjvR6bkMgxRIQ2bLv0vgRtJZx0tfYcEUnNLyRKz4RKaZsodXtiybWn5a42WLsCrVUKGOhEyzBAC0hkvHW450w8DsHfeTbT7bEX4upPdIleLkPdlTV+QUGOOL+72ivI1NLZwetwYtqiB4tbwQeUYNY7zHENjflj2atA6zi4oa6bdu73SglQsv6N3Kr+LPuoAOeRvWIu3Qx0Hk2iSEosG90GQ+gTs/hConSw0TZSIDbrtSQkXGfHStv8AXCm+cg==
+sidebar_class_name: "put api-method"
+info_path: developer-docs/api/superset
+custom_edit_url: null
+hide_send_button: true
+show_extensions: true
+---
+
+import MethodEndpoint from "@theme/ApiExplorer/MethodEndpoint";
+import ParamsDetails from "@theme/ParamsDetails";
+import RequestSchema from "@theme/RequestSchema";
+import StatusCodes from "@theme/StatusCodes";
+import OperationTabs from "@theme/OperationTabs";
+import TabItem from "@theme/TabItem";
+import Heading from "@theme/Heading";
+import Translate from "@docusaurus/Translate";
+
+<Heading
+  as={"h1"}
+  className={"openapi__heading"}
+  children={"Update a theme"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"put"}
+  path={"/api/v1/theme/{pk}"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Update a theme
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  {...require("./update-a-theme.ParamsDetails.json")}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./update-a-theme.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./update-a-theme.StatusCodes.json")}
+>
+
+</StatusCodes>