Dataframe column visibility can now be controlled (#7453)

### What

* Closes #7067
* Builds on #7438 

Add the possibility to control the visibility of column:
- Time columns (except the one corresponding to the query) and component
columns can be hidden by clicking on the on-hover button in their
header.
- A new button in the view title bar with a popup to show/hide any
column.

This also fixes a red warning showing up when latest-at queries return 0
rows (see #7449 for background).

Note to reviewer: the meat is in `space_view_class.rs`, which is ofc
hidden by default by GitHub.


https://github.com/user-attachments/assets/d2b55c63-53db-46dd-9339-b10af98a073b


### TODO

- [x] Fix bad sizing of the popup menu

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using examples from latest `main` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/7453?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/7453?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG
* [x] If applicable, add a new check to the [release
checklist](https://github.com/rerun-io/rerun/blob/main/tests/python/release_checklist)!
* [x] If have noted any breaking changes to the log API in
`CHANGELOG.md` and the migration guide

- [PR Build Summary](https://build.rerun.io/pr/7453)
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)

To run all checks from `main`, comment on the PR with `@rerun-bot
full-check`.

crates/store/re_types/definitions/rerun/blueprint/archetypes/dataframe_visible_columns.fbs

@@ -0,0 +1,18 @@
+namespace rerun.blueprint.archetypes;
+
+
+/// Which columns should be displayed by the dataframe view.
+table DataframeVisibleColumns (
+    "attr.rerun.scope": "blueprint"
+) {
+    // --- Optional ---
+
+    /// Are all column selected, or only those specified by the user?
+    selection_mode: rerun.blueprint.components.ColumnSelectionMode ("attr.rerun.component_optional", nullable, order: 100);
+
+    /// The time columns to include (if mode is set to "Selected").
+    time_columns: [rerun.blueprint.components.TimelineName] ("attr.rerun.component_optional", nullable, order: 200);
+
+    /// The component columns to include (if mode is set to "Selected").
+    component_columns: [rerun.blueprint.components.ComponentColumnSelector] ("attr.rerun.component_optional", nullable, order: 300);
+}

crates/store/re_types/definitions/rerun/blueprint/components/column_selection_mode.fbs

@@ -0,0 +1,16 @@
+namespace rerun.blueprint.components;
+
+
+/// How are columns selected in the dataframe view?
+enum ColumnSelectionMode: ubyte (
+    "attr.rerun.scope": "blueprint"
+) {
+    /// Invalid value. Won't show up in generated types.
+    Invalid = 0,
+
+    /// Show all columns returned by the query.
+    All = 1 (default),
+
+    /// Show only the columns specified by the user.
+    Selected = 2,
+}

crates/store/re_types/definitions/rerun/blueprint/components/component_column_selector.fbs

@@ -0,0 +1,13 @@
+
+namespace rerun.blueprint.components;
+
+/// Describe a component column to be selected in the dataframe view.
+//TODO(ab, jleibs): this probably needs reunification with whatever structure the data out API uses.
+table ComponentColumnSelector (
+  "attr.arrow.transparent",
+  "attr.rust.derive": "Default, PartialEq, Eq, Hash",
+  "attr.rust.repr": "transparent",
+  "attr.rerun.scope": "blueprint"
+) {
+    selector: rerun.blueprint.datatypes.ComponentColumnSelector (order: 100);
+}

crates/store/re_types/definitions/rerun/blueprint/components/timeline_name.fbs

@@ -6,7 +6,7 @@ table TimelineName (
   "attr.arrow.transparent",
   "attr.python.aliases": "str",
   "attr.python.array_aliases": "str, Sequence[str]",
-  "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord",
+  "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord, Hash",
   "attr.rust.repr": "transparent",
   "attr.rerun.scope": "blueprint"
 ) {

crates/store/re_types/definitions/rerun/blueprint/datatypes/component_column_selector.fbs

@@ -0,0 +1,20 @@
+namespace rerun.blueprint.datatypes;
+
+
+/// Describe a component column to be selected in the dataframe view.
+//TODO(ab, jleibs): this probably needs reunification with whatever structure the data out API uses.
+// Has to be a table because flatbuffer doesn't support strings in structs.
+table ComponentColumnSelector (
+  "attr.rust.derive": "Default, PartialEq, Eq, Hash",
+  "attr.rerun.scope": "blueprint"
+) {
+  /// The entity path for this component.
+  entity_path: rerun.datatypes.EntityPath (order: 100);
+
+  /// The name of the component.
+  // NOTE: this field cannot be named `component_name`, because it would then clash with
+  // `ComponentMixin.component_name()` in the Python API.
+  component: rerun.datatypes.Utf8 (order: 200);
+
+  //TODO(ab, jleibs): many more fields to come (archetype, etc.)
+}

crates/store/re_types/definitions/rerun/blueprint/datatypes/utf8_list.fbs

@@ -7,7 +7,7 @@ table Utf8List (
   "attr.arrow.transparent",
   "attr.python.aliases": "Sequence[str]",
   "attr.rerun.scope": "blueprint",
-  "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord, Default",
+  "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord, Default, Hash",
   "attr.rust.repr": "transparent",
   "attr.rust.tuple_struct",
   "attr.rust.override_crate": "re_types_blueprint"

crates/store/re_types/definitions/rerun/datatypes/entity_path.fbs

@@ -7,7 +7,7 @@ table EntityPath  (
   "attr.arrow.transparent",
   "attr.python.aliases": "str",
   "attr.python.array_aliases": "Sequence[str]",
-  "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord, Default",
+  "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord, Default, Hash",
   "attr.rust.repr": "transparent",
   "attr.rust.tuple_struct",
   "attr.rust.override_crate": "re_types_core"